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MIT’s tiny flying robot gets 450% faster with AI
A new AI control system lets MIT’s tiny flying robot move with insect-like agility, boosting its speed by about 450 percent and allowing it to pull off 10 somersaults in 11 seconds. The technology could eventually enable miniature robots to search earthquake rubble and navigate dangerous spaces that conventional drones cannot reach.
This emerging treatment could help people avoid knee replacement surgery
A minimally invasive procedure called genicular artery embolization could offer a new middle ground between conservative treatments and knee replacement for osteoarthritis. By blocking tiny blood vessels associated with inflammation, GAE can significantly reduce pain, with some patients reporting little or no pain afterward. Studies suggest the benefits may last two to four years in people who respond well.
I quit my job and became a travel 'micro influencer.' Now I make money online and see the world for free.
Rhiannon Wood quit her minimum-wage job and learned to monetize her travels by leading tours all over the world and posting on social media.
ECB, EU central banks oppose stablecoin bank deposit rule
Stablecoin issuers should not be required to hold a minimum proportion of their reserve assets as bank deposits because they could leave lenders exposed to changes in the stablecoin market and less sticky deposits, the ECB and other EU central banks said on Tuesday.
Businesses ‘frozen out’ of Trump’s tariff channel with China
The private sector is largely in the dark about the Trump administration's plans for a "Board of Trade" to oversee reductions on billions of dollars worth of duties.
Sunda Energy, Meridian Mining, Quantum Helium, Light Science Technologies, Foresight Solar, hVIVO
Sunda Energy PLC (AIM:SNDA, FRA:GHA0) has raised £5.25 million to fund completion of its New Zealand acquisition. It's also launching a retail offer for a further £525,000. Meridian Mining Plc (LSE:MNO, TSX:MNO, OTCQX:MRRDF) has delivered a net present value of $2.09 billion for its Cabaçal project in Brazil. The CEO says the economics could make it the next major near-term gold-copper mine. Quantum Helium Ltd (AIM:QHE) is targeting Q4 2026 for a larger fracture stimulation programme at Sagebrush-1 in Colorado. It's also taking a 9% stake in Herencia Resources. Light Science Technologies Holdings PLC (AIM:LST, FRA:9FD) has secured a repeat order from a healthcare devices customer, pushing that contract past £500,000. It's building out higher-margin work in defence and medical sectors. Foresight Solar Fund Ltd (LSE:FSFL, FRA:1F5) says it's considering all strategic options to lift a share price stuck below the value of its assets. The board says it needs to "act decisively" to close that gap. hVIVO PLC (AIM:HVO) has appointed Caroline Shaw as an independent non-executive director. She brings more than 30 years of senior healthcare leadership to the board. Follow us and subscribe on YouTube, our social channels, and on proactiveinvestors.co.uk.
Jiang Feng: The Unravelling of German & European Politics
A state election in eastern Germany has become a revealing test of the changing political landscapes of Germany and Europe, writes Jiang Feng, Professor and Chairman of the Council of the Shanghai Academy of Global Governance and Area Studies (SAGGAS) at Shanghai International Studies University. His analysis follows the decisive victory of the Alternative for Germany (AfD) (which has been classified as right-wing extremist by German authorities)in the state of Saxony-Anhalt on 6 September, in which it finished far ahead of its mainstream rivals. Jiang previously served as Minister-Counsellor at the Chinese Embassy in Berlin. The following article was published on 8 September 2026 on huanqiu.com, the online platform of the Global Times. On 6 September, the results of the state election in Saxony-Anhalt, Germany, were announced. The Alternative for Germany (AfD), classified as far-right by German authorities, made history by becoming the largest party in the state parliament, winning 43.8 per cent of the vote — twice its share in the previous election. The Christian Democratic Union (CDU), which had governed the state continuously for 24 years, won just 17.2 per cent, its worst result ever in Saxony-Anhalt. On the night the results were announced, the atmosphere at the CDU gathering was unusually calm. There was neither shock nor argument, as if the defeat had long been expected. Several veteran party members who had spent years working in the state government said: “Defeat is not a bad thing. It is time to make changes.” This state election has not only upended Saxony-Anhalt’s political landscape, but also laid bare the deep tensions between Germany’s traditional party structure and model of governance, on the one hand, and an increasingly polarised society on the other. Its repercussions are already being felt at the federal level, making Saxony-Anhalt a useful case study of the broader trend towards political polarisation and realignment in Europe. Governing Difficulties after Electoral Victory The most immediate consequence of the election is a historic setback for the mainstream party order that took shape in post-war Germany. In Saxony-Anhalt, the AfD has leapt from a peripheral party to the largest political force in the state. Its electoral base has expanded beyond the traditional category of “marginal protest voters” to take on the characteristics of a cross-class coalition. The party has not only consolidated its support in rural areas, but also attracted many middle-class voters and even members of the social elite with stable jobs, their own homes, and substantial incomes. It has thus evolved from a “protest party” into one with the potential to govern. Despite its commanding lead in the vote, however, the AfD faces an institutional obstacle to governing the state: the mainstream parties’ long-standing “firewall” against it. Neither of the two potential routes to forming a government appears likely to break the current political deadlock. The first would be a coalition of establishment parties, led by the CDU and bringing together the Social Democratic Party (SPD), the Greens, the Left Party (Die Linke) and the Sahra Wagenknecht Alliance (BSW) in a cross-camp government. In terms of parliamentary arithmetic, such a coalition could prevent the AfD from forming a government and preserve the outward stability of the traditional political order. Yet these parties are fundamentally divided over key issues including immigration, the energy transition, economic management, and cultural and education policy. Coalition negotiations would therefore be extremely difficult, and even if a government could be formed, it would most likely prove short-lived. More importantly, an alliance of establishment parties aimed at keeping the largest party out of government would play directly into the AfD’s narrative that “political elites are suppressing public opinion”. It could deepen perceptions of political unfairness, further strengthening the AfD’s political capital, and creating a dynamic in which “the more it is suppressed, the more people vote for it”. Ulrich Siegmund, the AfD’s candidate for state premier, has said that if efforts to form a government fail because other parties refuse to cooperate, the AfD will push for a fresh election, which he believes could deliver the party an absolute majority of seats. This points to more intense political battles ahead. The second option would be a coalition between the AfD and the BSW. Together, the two parties would command a simple majority in parliament, making this, on paper, the quickest route to forming a government. The BSW is the only elected party that has not ruled out cooperation with the AfD, and the two parties share some common ground, including on policy towards Russia. There is therefore a degree of political basis for cooperation. Were such a coalition to materialise, Germany would see its first state government jointly formed by a party defined as far-right and one with a far-left background, creating what might be called a “bipolar anti-establishment alliance”. Such an outcome would fundamentally break with the ideological boundaries of post-war German party politics. It is worth noting that even if the AfD ultimately fails to enter the state government, its roughly 47 per cent share of parliamentary seats would give it a powerful blocking minority. Without its consent, major decisions requiring a two-thirds majority — including constitutional amendments, significant budgetary adjustments, and state-level institutional reforms — would be extremely difficult to pass. Therefore, whoever ultimately forms the government, the AfD will be an unavoidable force in Saxony-Anhalt politics, with a direct influence on the state’s legislative process. Systemic Failures in Germany’s Governance Model The Saxony-Anhalt election result reflects a systemic failure of Germany’s post-war mainstream-party model of governance to adapt to rapidly changing socioeconomic conditions. It stems from multiple, mutually reinforcing structural tensions and highlights the existing political system’s difficulty in adapting to “an increasingly polarised society First, collective anxiety has replaced individual material hardship as a central driver of political mobilisation. The rise of the AfD can no longer be explained simply by poverty or social marginalisation. Its increasingly cross-class electoral base suggests that what is driving voters towards the party is, above all, concern about the broader direction of society. This anxiety about the future of the political community goes beyond individual gains and losses. In political discourse, economic anxiety has become closely intertwined with immigration, while immigration and refugee issues are, in essence, questions of social fairness. This perception turns conflicts over the distribution of social resources into negative assessments of governing parties, providing a broad social basis for far-right political narratives. Second, regional disparities and East German identity have undermined the strategy of addressing eastern Germany’s structural challenges at the regional level. More than three decades after German reunification, eastern states such as Saxony-Anhalt have experienced periods of economic growth, but their underlying economic structures remain weak, and household incomes and wealth remain significantly below those in western Germany. At the same time, they continue to face population outflow, an ageing population, labour shortages, and other structural challenges. At a deeper level, historical experiences — including the collapse of the former East German economic system, mass unemployment during the transition, and the westward shift of decision-making power over major issues — have left some residents with a sense of being “second-class citizens” and of being excluded. For years, the German government treated the “syndrome” of reunification as a regional problem to be gradually addressed at the local level. That approach is becoming increasingly unsustainable, as regional development disparities emerge as a core structural factor shaping national politics. Third, the erosion of institutional trust is perhaps the most decisive factor. AfD supporters tend to distrust establishment institutions, including parliament, government, and the mainstream media. Their concerns about economic security, pensions, and social fairness are significantly greater than the social average. Increasingly, their support for the AfD reflects not an expectation that the existing system can be improved, but a search for an alternative to the current political order. Such a systemic deficit of trust will be extremely difficult for the traditional parties to repair in the short term. Fourth, a generational shift in political mobilisation has amplified political polarisation. Unlike traditional parties, which rely heavily on offline rallies and mainstream media coverage, the AfD has developed a social-media mobilisation strategy built around “raising an issue — identifying who is responsible — offering a simplified solution — building a shared identity”. It turns complex social tensions into concise political narratives, rapidly channelling public sentiment into political support. The contrast on the eve of the election was particularly telling. The establishment parties, together with trade unions and churches, organised an offline march attended by more than 10,000 people, but its reach was largely confined to those present and to traditional media coverage. The AfD held a much smaller indoor event, yet livestreaming on TikTok, YouTube, and other platforms, combined with the involvement of online influencers, gave it a reach and mobilising capacity far beyond that of the march. The contrast illustrates how the traditional parties’ methods of political mobilisation are increasingly struggling to keep pace with a political environment transformed by changes in media technology. A Microcosm of Structural Political Change in Europe The shockwaves from the Saxony-Anhalt election quickly travelled beyond the state to the federal level. Calls for political accountability followed immediately after the results were announced. The governing CDU and SPD are now under enormous pressure, while Chancellor Friedrich Merz and Vice Chancellor Lars Klingbeil face an unprecedented test. Political polarisation in Germany is no longer simply a regional phenomenon. The post-war model of multiparty government by establishment parties is breaking down and being reshaped. Viewed in a broader European context, the Saxony-Anhalt election is part of a continent-wide wave of party polarisation, mainstream-party decline, and rising right-wing forces. Far from an isolated phenomenon, it is a microcosm of the structural political changes unfolding across Europe. Weak economic growth, cultural tensions over immigration, and declining trust in institutions are fuelling the rise of right-wing forces in several countries, challenging the liberal internationalist order established in post-war Europe. As a core member state of the European Union, Germany’s ability to adapt its political system and the direction of its politics will have profound implications for both European integration and the evolution of the international order. Subscribe [ Pekingnology China’s Germany watchers take stock of Berlin’s uneasy turn On 7 December 2025, nearly 50 Chinese scholars and policy researchers gathered in Beijing for the 2025年德国形势年终研讨会 “2025 Year-End Seminar on the Situation in Germany… Read more 9 months ago · 31 likes · 1 comment · YIRUI LI and Yuxuan JIA ](https://www.pekingnology.com/p/chinas-germany-watchers-take-stock?utm_source=substack&utm_campaign=post_embed&utm_medium=web&embedding_publication_id=1151841) [ Jiang Feng on Germany's 2025 and beyond: no easy exit ](https://www.eastisread.com/p/jiang-feng-on-germanys-2025-and-beyond) Yirui LI and Yuxuan JIA · Jan 24 The following is an op-ed by Jiang Feng, published on 29 December 2025 at Shanghai Observer 上观新闻, the digital platform of Jiefang Daily, the official newspaper of the Shanghai Municipal Committee of the Communist Party of China (CPC). [ Read full story ](https://www.eastisread.com/p/jiang-feng-on-germanys-2025-and-beyond)
Mobile boat clinics bring healthcare to India's remote islands
An infant lets out a feeble cry as a doctor administers a routine but vital injection aboard a mobile boat clinic, part of a network serving remote riverine communities in northeastern India.But the n...
Best M6 Mac mini, 2026 Mac Studio deals on release day
Amazon's 2026 Mac mini and Mac Studio deals deliver the lowest prices as the new desktops hit store shelves.
Andy Burnham expects to find 'common ground' with Trump in first meeting
In New York, the prime minister will also deliver a speech to the UN General Assembly expected to be focused on AI.
SBA offering low-interest loans for businesses impacted by drought
UMATILLA COUNTY — The U.S. Small Business Administration (SBA) is offering disaster assistance for businesses in Oregon, Washington and Idaho that were impacted by drought this year. The SBA announced […]
Gateway to Science starts STEM Adventure Mini Camps
Gateway to Science started its STEM Adventure Mini Camps on Monday.
Beshear announces nearly $17M in federal grants for mental health, addiction services
Gov. Andy Beshear's administration has secured nearly $17 million in federal funding to support 988 crisis services, youth mental health and addiction recovery, his office announced Monday.
Gateway to Science starts STEM Adventure Mini Camps
Gateway to Science started its STEM Adventure Mini Camps on Monday.
Green policies just good politics, says UK minister
Transitioning to a low-carbon economy isn't just vital for the planet's future -- it's also good politics, according to Britain's climate minister, who argues the country's record-hot summer has galva...
Britain's Burnham to meet Trump and make UN debut after offering UK military support for Saudis
Britain's Prime Minister Andy Burnham is set to meet U.S. President Donald Trump for the first time.
SpaceX Seems to Expand 'Free' Starlink Mini Perk to All Residential Plans
Starlink quietly tweaks language about the 'Optional Mini Kit' perk, which used to only be for the Residential Max plan.
The Fed Moved. The Borrowing Math Changed for Businesses.
Citizens’ Mark Valentino and Eric Merlis unpack the business implications of the Federal Reserve’s latest rate hike, examining what the new borrowing environment means for investment and financial …
What is ibogaine, and what does it treat?
Psychedelic drugs, once pushed to the fringes of medicine, are gaining serious attention within the Trump administration as potential treatment options for people with certain mental health conditions. And they could be getting closer to receiving approval from the US Food and Drug Administration.
Examining What Phoenix Suns Look Like With Different 2017 Draft
Derrick White’s defensive brilliance and versatile playmaking could have revolutionized Devin Booker’s backcourt, potentially steering Phoenix toward the 2021 title instead of years of draft-day regret.
Health Ministers of the Americas to meet in Washington to address the Region’s leading public health challenges
The highest health authorities in the Americas will discuss new strategies on health emergencies, antimicrobial resistance, arboviral diseases, and food safety.Washington, D.C., 21 September 2026 (PAHO) – Ministers of Health and other high-level authorities from across the Americas will gather from 28 September to 2 October 2026 at the headquarters of the Pan American Health Organization (PAHO) in Washington, D.C., for the 63rd PAHO Directing Council and other governance meetings.
Florida’s Minimum Wage is Rising Sept 30: Is Your Business Ready to Comply?
Florida employers need to prepare for a minimum wage hike to $15 an hour on September 30. And if you have tipped employees, you’ll need to pay them at least $11.98. This is the last of the annual increases voters approved in 2020. We’ll tell you what’s changing and the steps you should consider taking now to comply.
Key senators reject White House proposal on NIH grants
Sens. Susan Collins and Patty Murray are rejecting efforts by the Trump administration to give the White House control of National Institutes of Health grant funding.
As The Deadline Nears, Civil Society Urges Spain To Nominate María Neira As WHO Chief
With Thursday’s 24 September deadline looming, international scientific societies and civil society leaders are pushing Spain to sponsor a last-minute WHO Director-General nomination for Dr María Neira. Endorsed by Nobel Peace Prize Laureate Adolfo Pérez Esquivel and Dr Carlos Ferreyra of Climate, Life and Health International, the petition urges Spanish ministers to register her candidacy before entries close.
Kentucky receives millions in federal funding for mental health services
Kentucky will receive $17 million in federal funding from the Substance Abuse and Mental Health Services Administration, Gov. Andy Beshear announced Monday.
Gov. Beshear administration secures $17M in funding for mental health services
The Beshear administration announced the securing of millions in grant funding for mental health and addiction support.
Trump administration gave firm with ties to ballroom donor the green light to do business with a sanctioned Russian bank
Private equity investor Konstantin Sokolov was also appointed to run a government enterprise fund.
Kentucky secures nearly $17 million for mental health, addiction services
Gov. Beshear says healthcare is a basic human right and his administration is taking action to expand and protect access to essential services that save lives.
Trump shattered Canada’s old US relationship. Carney is building a new one in Europe
TORONTO (AP) — For nearly four decades, Canada built its economy around closer integration with the United States. President Donald Trump has turned that dependence into leverage, imposing tariffs, threatening Canada’s sovereignty and openly seeking to pull Canadian industrial production south. Canadian Prime Minister Mark Carney has moved on. Rather than return to trade talks […]
The Netherlands is bracing for potentially devastating US sanctions against the ICC
THE HAGUE, Netherlands (AP) — Dutch officials are preparing for the United States to impose a tough new round of sanctions on the International Criminal Court as it seeks to dismantle the global tribunal over what the Trump administration sees as overstepping its authority. Officials in the court’s host country, the Netherlands, have been notified […]
Record-Breaking Bundibugyo Ebola Outbreak "Still Serious" And Not Fully Controlled, Despite Officials Claiming It's Past Its Peak
The WHO and Africa CDC have pushed back against the DRC health minister's statements that the outbreak is "under control".
Read the lawsuit: CNN, MS Now and Politico sue Trump admin over White House access
Read the full lawsuit CNN, MS Now and Politico filed against the Trump administration over White House access.
Stand Up for Science Warns of Trump And Vought’s Backdoor Plan to Seize Control of Entire NIH Grant Budget
Signals another attempt to let White House pick winners and losers in American science, undermining decades of peer-reviewed research.
Stand Up for Science Warns of Trump And Vought’s Backdoor Plan to Seize Control of Entire NIH Grant Budget
Signals another attempt to let White House pick winners and losers in American science, undermining decades of peer-reviewed research.
Google opens pre-orders for $899 Googlebook laptops built around Gemini AI
Alphabet's Google on Monday opened pre-orders for Googlebook, its new premium laptop category for Android users built around the company's Gemini AI tools.
Travel health insurance
Travel health insurance Do you have a friend or relative traveling to the Dominican Republic? Encourage them to get travel health insurance before they depart the U.S. to avoid possible medical emergencies becoming financial emergencies, too. Many travelers ask, “Why would I need travel health insurance–I have health insurance?” But your domestic U.S. health insurance may not work overseas. Hospitals here in the Dominican Republic often require payment in full prior to the patient being treated or being discharged. Some private U.S. insurance companies pay for overseas medical care, but usually only on a reimbursable basis, meaning you must pay first and request reimbursement later. The U.S. government does not pay for medical care overseas, and Medicare does not cover medical or hospital expenses incurred outside the United States. In addition, if the traveler needs to be medically evacuated for any reason, this is not covered by most U.S insurance and usually costs well over $10,000 USD. Travel medical insurance can alleviate this cost burden. Don’t let unexpected medical costs ruin your vacation! Please review more information here on Travel.State.Gov and on the Embassy website’s page on Medical Emergency – U.S. Embassy in the Dominican Republic.
Apple M6 Mac mini review: $300 price hike spoils a nice upgrade
The M4 Mac mini was one of Apple's best values ever. This one, not so much.
Apple Mac mini (M6) review: The best compact desktop is no longer a great deal
At $899, the new Mac mini loses the fun factor of the previous models.
Record-high diesel prices squeezing small business margins amid Middle East tensions
U.S. Small Business Administrator Kelly Loeffler discusses new SBA capital initiatives and Gen-Z business trends as diesel prices hit record highs.
Kelly Loeffler warns of 'silver tsunami' as boomer business owners retire
U.S. Small Business Administrator Kelly Loeffler discusses the economic impact of the 'silver tsunami' on small businesses. She details how the agency supports millennials transitioning into skilled blue-collar trades.
The Netherlands is bracing for potentially devastating US sanctions against the ICC
The Netherlands is making preparations for the United States to sanction the International Criminal Court, in the last escalation of the Trump Administration’s attacks on the global tribunal.
CES principal discusses rationale behind lack of sixth-grade science
BAR HARBOR — In June, a group of 13 families first raised doubts about the way the Connors Emerson School administers its science instruction in the higher grades — providing
A new process turns plastic waste into gasoline and diesel fuel
Scientists at Oak Ridge National Laboratory have developed a surprisingly simple way to turn polyethylene, the common plastic used in shopping bags and cutting boards, into gasoline and diesel-like fuels. The process uses inexpensive aluminum-based molten salts to break long plastic molecules into smaller hydrocarbons, producing about 60% gasoline under relatively mild conditions.
Britain’s Burnham is set to meet Trump for the first time at the UN in New York
Britain's Prime Minister Andy Burnham is set to meet U.S. President Donald Trump for the first time. The meeting will take place on the sidelines of the United Nations General Assembly in New York. Burnham plans to discuss ways to bolster Ukraine's defenses and ease fuel prices that have soared since the US-Israeli war with Iran blocked ships from moving freely through the Strait of Hormuz. Burnham, once critical of Trump, now says he wants to seek common ground. Trump has called Burnham “a nice guy,” but has also concerned U.K. officials by expressing support for Irish unification and musing about the future of the Falkland Islands.
CNN, Politico and MS NOW plan to sue the Trump administration over ban on White House coverage
The news outlets said the ban “threatens press freedom and the public’s right to independent journalism.”
CNN, MS NOW, Politico say they've notified Trump they're suing over denied White House access
The actions were a clear escalation of President Donald Trump’s long-running efforts — in the courts and through administrative action — to restrict news coverage by journalists he finds objectionable, and were the latest test of First Amendment protections in the United States.
Perfect posture? MoMA exhibition explores perspectives on body politics in public spaces
Seven contemporary artists respond to Marianne Wex’s groundbreaking 1970s feminist work on body language in the New York show
2026 Gartner® Critical Capabilities™ for Business Orchestration and Automation Technologies Report Ranks Appian #1 for the Deterministic Workflow Automation Use Case and Platform Consolidation Use Case
/PRNewswire/ -- Appian (Nasdaq: APPN) today announced it has ranked #1 for the Deterministic Workflow Automation Use Case and Platform Consolidation Use Case...
CNN, MS NOW and Politico to sue Trump administration over White House access
CNN By Katelyn Polantz, Brian Stelter, CNN (CNN) — The three national news outlets President Donald Trump banned from the White House — CNN, MS NOW, and Politico — are filing a critical First Amendment lawsuit to restore their access. The emergency request is set to go before a federal judge in the DC District
Oklahoma County jail administrator on challenges of mental health care
CNN, MS NOW and Politico to sue Trump administration over White House access
The three national news outlets President Donald Trump banned from the White House — CNN, MS NOW, and Politico — are filing a critical First Amendment lawsuit to restore their access.
Despite court wins, California election war with Trump rages on
L.A. County says it has received federal grand jury subpoenas demanding voter registration information on dozens of individuals the Trump administration suspects may not be U.S. citizens.
Trump administration takes on mental health parity
It's steering the issue in a different direction than the Biden administration.
Examining the cost of money in campaigns
Despite The Beatles proclamation that “money can’t buy me love,” nearly every political campaign and candidate in American politics knows the great impact of a full war chest.
Pakistani Minister’s Tehran Visit Unrelated to US-Iran Messages
TEHRAN (Tasnim) – A visit by Pakistan’s Interior Minister Mohsin Naqvi to Tehran later today has nothing to do with the exchange of messages between Iran and the US, Tasnim has learned.
Iran Condemns Israeli Atrocities against Palestinians
TEHRAN (Tasnim) – Iran’s Foreign Ministry strongly condemned the Israeli regime’s ongoing crimes against Palestinians, calling for urgent international action to stop the genocide in Gaza and the West Bank.
Araqchi Flies to New York for UNGA
TEHRAN (Tasnim) – Iranian Foreign Minister Abbas Araqchi left Tehran for New York on Sunday afternoon to attend the United Nations General Assembly session.
Business Buzz
The Business Buzz features news about the economic scene, promotions, acquisitions and expansions. Contact Pat Hill at pat.hill@pikespeaknewspapers.com or (719) 636-0358. Tony Perry/Park State Bank & Trust provided the sound system for the Sept. 11 ceremony in Lions Park. SSR Mining Cripple Creek Victor is the presenting sponsor of the Light of Hope Teller, a […]
Trump shattered Canada’s old US relationship. Carney is building a new one in Europe
Canadian Prime Minister Mark Carney is urgently trying to reduce dependence on the United States as President Donald Trump uses tariffs and economic pressure against America’s longtime ally.
Should you trust an AI doctor? Relying on Gemini for health advice could be fatal
A fake disease, complete with absurd clues and a fictional laboratory aboard the USS Enterprise, was enough to fool AI chatbots—and even find its way into the scientific literature. The hoax exposes a deeper problem: AI can sound authoritative without knowing whether the information it has absorbed is true.
Israeli settler shot dead in West Bank before Yom Kippur
Israeli civilian shot dead in West Bank as tensions rise; Iran's foreign minister heads to UN via Qatar, and CIA chief visits Egypt.
Mental Health Awareness MOnth
Gibson County Health Department Administrator Juli Ellsworth (center, holding microphone), welcomes participants to Thursday's second annual mental health awareness walk through downtown Princeton. September is Mental Health Awareness Month.
Nine Entertainment Cites Surging Ratings and Momentum in Long-Term Partnership with NBL
Nine Director of Programming Geoff Dyer explains why surging ratings drove their long term NBL broadcast partnership.
Choate workers’ union files lawsuit to block state from gutting mental health facility
ANNA — The labor union representing hundreds of employees at Choate Mental Health and Developmental Center has filed a lawsuit challenging the state’s planned downsizing of the facility, arguing Gov. JB Pritzker’s administration failed to follow state laws governing reductions in healthcare services, the closure of state facilities and the preservation of psychiatric beds. ...
Kade Anderson strong in Mariners 2-1 win in Colorado
Dominic Canzone picks up two key hits as Mariners extend season
73-83: Chart
Mariners 2, Rockies 1 Italian food: Kade Anderson, +0.51 WPA, Dominic CanzoneItalian food discourse: The rest of the lineup, -0.48 WPA Game Thread Comment of the Day
Trump reportedly to form health funding board that could veto ‘woke’ initiatives
President’s latest order expected to bring NIH funding under control of Trump administration to align with agenda
Norwegian PM Signing Ceremony on Parliament Hill
A signing ceremony is held on Parliament Hill in Ottawa between Norwegian Prime Minister Jonas Gahr Støre and Prime Minister Mark Carney. (no interpretation) (September 20, 2026)
14 Quirky Mini Gadgets That Make Great Gifts
If you're trying to figure out what gifts to buy for the tech-enthusiast in your life, why not browse among the miniature options?
California tightens disclosure rules for influencers who post political ads
A new law will allow authorities to impose administrative, criminal and civil penalties on social media users who don’t make clear when they’re paid to post.
Ebola outbreak update: Cases and deaths; Dungu health zone, Haut-Uélé province now affected
A total of 73 new confirmed cases of Ebola Virus Disease (EVD) were reported on September 18, 2026, including 25 community deaths. Of these confirmed cases, 46 were from Ituri province, 18 from North Kivu, 6 from Haut-Uélé, and 3 from Tshopo. A new health zone, Dungu, in Haut-Uélé province, was affected during the day. As this zone borders South Sudan, strengthening cross-border surveillance is necessary. During the day on September 18, 2026, 12 deaths within Ebola Treatment Centers (ETCs)—10 in Ituri and 2 in North Kivu—were unfortunately recorded, bringing the total number of deaths for the day to 37. However, 41 patients were declared recovered (30 in Ituri, 6 in Haut-Uélé, 3 in North Kivu, and 2 in Tshopo) after testing negative for EVD twice. Since the start of the epidemic in the Democratic Republic of the Congo (DRC), a cumulative total of 7,614 confirmed cases, including 3,676 deaths, has been recorded, representing a case fatality rate of 48.3%. The epicenter remains Ituri province, which accounts for 77.2% of the confirmed cases reported across the seven affected provinces and also accounts for 63.0% of the new confirmed cases. A new health zone was affected on September 18, 2026. Consequently, 63 out of 167 health zones (37.7%) across 7 provinces are affected. Subscribe to Outbreak News TV on YouTube Response measures feature 97% traveler screening at entry points, surveillance expansion to new area Dungu, and community outreach sensitizing over 110,000 people in one day. The Democratic Republic of the Congo’s health system faces deep, structural constraints that predate the current Ebola outbreak and make epidemic response far harder. These problems are most acute in rural areas and the conflict-affected east. Outbreak News Today is a reader-supported publication. To receive new posts and support my work, consider becoming a free or paid subscriber. Subscribe Eastern provinces have seen health facilities damaged, looted, or abandoned. Insecurity delays patients, blocks supply deliveries, and exposes staff to attacks. Millions of displaced people live in camps with poor water, sanitation, and health services, increasing outbreak risk. Vast distances and poor roads mean many people walk hours or days to reach care. These same weaknesses explain why Ebola has continued to spread into new, under-prepared health zones even as some original hotspots show improvement: surveillance, laboratory turnaround, contact tracing, and infection control remain thin outside the best-supported sites. The Ministry of Health and partners have scaled up treatment centres, laboratories, and vaccination in the current outbreak, and some digital surveillance systems (DHIS2) provide a useful backbone. However, the underlying gaps in staffing, basic infrastructure, reliable funding, and logistics have not been closed. Without sustained investment in those foundations, the system will remain vulnerable to both routine disease burden and the next large outbreak. If you like the reporting on Outbreak News Today, please consider a paid subscription for $5/month or $30 a year. Help support the cause of this niche journalism. It is appreciated.
Anchorage Assembly members float new campaign requirements for local political offices
The proposed change could require would-be candidates to submit a minimum number of signatures gathered from qualified voters in order to appear on municipal ballots.
‘No legal effect’: Poland condemns Russian ‘sham elections’ in occupied Ukraine
The Polish foreign ministry also condemned the voting held in breakaway regions of Moldova and Georgia.
RFK Jr. Tells Anti-Vaxxers at Children's Health Defense Conference They Have a Friend in Trump's White House
Kennedy praised the Trump administration's efforts to scale back vaccine guidance. His speech comes as the U.S. faces its worst measles year since 1991.
DGX Spark prices are already climbing before RTX Spark mini PCs launch
NVIDIA lists DGX Spark at $4,699, but the cheapest unit we found in stock costs $4,999.99. RTX Spark Windows PCs arrive in October.
Gemini’s exchange business is shrinking. Its regulatory licenses may be the real prize
The crypto platform’s market value has fallen to about $753 million, putting fresh attention on the licenses, custody infrastructure and customer relationships a buyer could inherit.
This Landmark '70s Western Miniseries Everyone's Forgotten About Was Based On A Beloved Book
WSCC event to explore AI impact on mental health
West Shore Community College will host a free HumanKind event on AI and mental health, examining benefits, risks and care access.
WSCC event to explore AI impact on mental health
West Shore Community College will host a free HumanKind event on AI and mental health, examining benefits, risks and care access.
Trump’s FDA nominee is under scrutiny. Here’s what Louisiana residents worry about.
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MLT’s new family-focused indoor entertainment complex open for business
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The New York Times
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Bar Harbor Parents Again Raise Concerns About How Some Science Education In Sixth Grade.
The Bar Harbor Story is generously sponsored by Restaurant Barn. BAR HARBOR—Parents again raised concerns this week about how Bar Harbor students receive science instruction after fifth grade, months after the same issue came before the Bar Harbor School Board. The concern centers on a past scheduling change at Conners Emerson School that gives fifth graders a full year of science rather than switching between science and social studies at midyear. Principal Dr. Heather Weir Webster told the board that the school has been monitoring test scores, teacher feedback, and the experience of students as it considers whether the current approach is working. If it is not, the approach may be changed, but that would not likely occur this school year. In fifth and sixth grade, the school used to have one semester of social studies and one of science in each year. That schedule shifted because switching at midyear often broke up the learning units. So, approximately two-three years ago, they decided to shift that a bit. Science became a dedicated focus in fifth grade. Social studies was the dedicated focus in sixth grade. The school staff members are hoping to dive deeply into the data and see if the students are having a more quality experience throughout their time in those grades when it comes to science and social studies. If not, things could shift again. This year, Dr. Webster said at the September meeting, potential changes to curricula have been a bit complicated by moving into the school’s new building in late October and early November. “There have been no changes this year because it’s hard enough to handle the move. That allows them to have consistency,” Dr. Webster said. Dr. Webster said that after the Covid pandemic which prevented students from attending school in person, many fifth graders were struggling. “We tried several different configurations,” she said, including a co-teaching model to help with that struggle, but to also see how to best schedule and support those students. “We found that a January switch” where classes switched from social studies to science was really difficult. Part of the decision making stemmed from science being more hands-on and accessible to fifth graders. Social studies was a bit more abstract content, which was why the school tried the current configuration. In a letter submitted as public comment, parent Beth Dumont wrote, “In May 2026, I wrote to express my concern that our middle school students are not receiving consistent instruction in science and social studies. I appreciate that the Board took this concern seriously and requested a presentation from Principal Webster. I am also grateful for the opportunity to meet with Principal Webster and Julie Keblinsky in July to learn more about the current curriculum and scheduling. “During that meeting, I learned that the current model is intended to integrate science and social studies into other subjects during the years or semesters when they are not offered as standalone courses. “While I appreciate the intent behind this model, I remain concerned about its premise. Science and social studies are core academic disciplines that provide students with essential knowledge, skills, and ways of thinking. Yet under the current schedule, students are not guaranteed consistent instructional time in these subjects. Instead, exposure to content in these disciplines may depend on whether opportunities for integration arise within other classes. “To be clear, I strongly support interdisciplinary learning. Integrating science and social studies across the curriculum can enrich students’ educational experiences and help them make meaningful connections across subject areas. My concern is not with integration itself, but with relying on integration as a substitute for dedicated instruction in core disciplines.” Dr. Webster said that they’ve been monitoring test scores, talking to teachers, seeing how the pilot program works. It’s in its third year now of this schedule. One science teacher, she said, told her he’d seen positive outcomes with full year science and that there was a stronger classroom community. Another science teacher had concerns over the readiness last year, but she isn’t feeling that way about this year’s current class. A third teacher for social studies said he loves the full year. A fourth teacher of social studies hasn’t said that anything has changed. For the three fathers who spoke at the school committee meeting, the fractured science curriculum caused concerns. One father said that when he spoke to others, “all were surprised and confused as to why there was no dedicated, continuous science education,” at the school. Though students are testing well in science and math, he worried that without continuity in education, learning is lost. “We shouldn’t have to choose between key learning disciplines,” he said. Matthew Bergin, another father, agreed, adding, “I’m just a little concerned.” In her letter, Dumont wrote, “As the parent of a recent sixth grader who completed an entire year without a dedicated science course, I saw very little evidence that this integration was occurring in a consistent, systematic, or readily identifiable way. This is not a criticism of our middle school teachers, who have been uniformly excellent. Rather, it is a structural criticism of the current schedule.” Dr. Webster gave an update about all aspects of the schedule and how it’s created and she also spoke to social and emotional learning (SEL) in middle school. It’s explicitly taught but also embedded. Science is embedded as well and explicitly taught at all but that one grade. The school schedule is built from lunch out, then electives like art and physical education are placed, before going into the instruction time, teacher planning time, multi-tier support systems (MTSS), and then social and emotional learning. Teachers have to have 250 minutes a week of planning time per their contracts. That’s the minimum and occurs when their students are at specials. “The schedule is really not the purview of the board,” School Board Chair Marie Yarborough reminded the other board members and the public and thanked Dr. Webster for the presentation. The parents were also thanked for coming. LINK TO LEARN MORE [ ](https://barharborstory.substack.com/p/despite-strong-rankings-some-bar) [ Despite Strong Rankings, Some Bar Harbor Parents Raise Concerns About School's Science Education ](https://barharborstory.substack.com/p/despite-strong-rankings-some-bar) Carrie Jones · Jun 4 [ Read full story ](https://barharborstory.substack.com/p/despite-strong-rankings-some-bar) HELP SUPPORT THE BAR HARBOR STORY When we started The Bar Harbor Story, we didn’t know if anyone would read it. But you showed up. You shared. You sent tips. Now—over 400,000 views every month later—it’s clear: people here care about their community and each other. We’ve kept everything free because news should never be out of reach, but every one of our stories takes time to write, and your support keeps The Bar Harbor Story going. If you value our work, please consider a paid subscription, a founding membership, or a sponsorship. It truly helps us cover one more meeting, tell one more story, shine one more light. Even $5 a month makes a difference. Click here to become a one-time supporter now. Thank you so much for being here. Founding member information can be found here. Have questions about sponsorships? Just send Shaun an email at sfarrar86@gmail.com, he’d love to hear from you. Subscribe Share Bar Harbor Story Share Leave a comment
Trump administration starts building border wall in Big Bend region of Texas, despite heavy opposition from landowners, businesses and ranchers
“We will continue to fight for this land no matter what the outcome is. We will continue fighting to the end.”
The Big Holes in Wearable Heart Rate Variability And Readiness Scores
On September 9th, Apple announced it was revamping its Apple Watch Health Sensing System, rolling out a Readiness score (0 to 10), and increasing the frequency of heart rate variability (HRV) outputs 24-fold. This can be viewed as upping its competition with various other consumer wearable sensors. These “readiness scores” as a composite of multiple metrics, with heart rate variability (HRV) being front and center for most. The majority of Americans are now using wearable sensors, which equates to well over 100 million adults. HRV and Readiness scores are increasingly being marketed as a measurement of autonomic nervous system health, a digital marker for future disease, a clock for biological age, and a holistic metric to promote healthspan and even longevity. (Apple also introduced a new longevity tab and “Health Age”.) None of this has been proven. In this edition of Ground Truths I am going to review what we know about heart rate variability and readiness scores. Heart Rate Variability HRV is the variation in normal heart cycle timing. The variability of the heart rate, the barely perceptible millisecond changes in time between consecutive heart beats (see R-R intervals in the Figure below, left panel), is due to interplay between the sympathetic and parasympathetic (vagal nerve) inputs. Distinct from heart rate, individuals with the same heart rate can have very different HRVs. It is a rough reflection of the autonomic nervous system (ANS) activity, inadequate to say whether a person’s ANS function is abnormal. For more than three decades, heart rate variability (HRV) has been measured and several studies have found an association of low HRV and clinical outcomes, particularly a link with higher all-cause and cardiovascular mortality. There have also been less well established links of low HRV to risk of early cognitive impairment, dementia, mental illness, Type 2 diabetes and substance abuse. An important reminder is that HRV is a surrogate marker without any established cause-and-effect relationship. If you increase your HRV, that doesn’t mean it will improve health outcomes. In fact, there is no hard evidence for that. All that work linking to health outcomes was done with electrocardiogram (ECG) derived HRV. Now, in the era of consumer wearables, this is getting assessed differently, by optical pulse (yes, the lights you see) plethysmography (PPG) or what is called pulse rate variability (PRV). They are not the same, as shown below (right panel) and only concordant when the delay between the ECG and pulse is kept constant, which basically means at rest. I should mention there’s also what I will call MPV, a mattress mechanical movement sensor, a derived heart rate variability, that companies like Eight Sleep use, even further away from directly measuring HRV. HRV has not one uniform measurement but many different types of quantification, such as RMSSD, the magnitude of difference between successive R-R intervals of normal sinus beats (N-N) or SDNN, the standard deviation of NN intervals, both in milliseconds. SDNN is one of the so-called frequency domain HRVs (others are LF, HF, LF/HF). Different wearable sensors use different metics; Apple has relied on SDNN and nearly all of the others use RMSSD, which is generally considered the more accurate metric. There’s also the different length of time measured, such as for a matter of minutes, all day, or an overnight’s sleep. Short measurements are especially problematic since they don’t capture enough of respiratory modulation and other factors that influence HRV. Share Ground Truths How well does HRV correlate with PRV? There are very limited studies, especially independently done. One that is commonly cited was conducted by Air Force researchers in only 13 healthy adults assessing Oura ring 3 and 4, Whoop 4.0, and Garmin Fenix 6 and showed a correlation coefficient of 0.88 to 0.97 and a mean absolute percentage error from 6 to 10%. The correlation is not a perfect 1.0, but there’s at least a fairly high level of correlation. HRV is supposed to increase during the night due to takeover of the parasympathetic nervous system, and higher during deep sleep. A recent example of my 1 week, all day “HRV,” and one during sleep is shown below. As you can see, the N of 1 data are inconsistent for the same days from different sensors (Oura, AppleWatch, Fitbit Air, and Eight Sleep) by patterns, absolute numbers, and comparison with prior days and weeks. The largest study in over 8 million Fitbit users (the old version, not Google Fitbit Air, introduced in May 2026) gives you a sense of the effect of age, sex, and the 2 different main HRV (here PRV) metrics, with RMSSD on the left and SDRR (=SDNN) on the right below. That study, from data collected in 2018, is a major outlier, since all the more recent ones are tiny with respect to sample size. Many of the companies have not had independent evaluation of their HRV, such as Eight Sleep, but have published a low standard error on their website. There are some other published studies on the correlation between HRV and PRV, but they are all small and only in healthy adults. A scoping review emphasized the lack of study in underrepresented individuals, including the aged, people of color (which affects the PPG signal), and individuals who are underweight or obese. Add the typical adult age 60 plus with one or more chronic diseases. For example, one study in over 900 adults found poor correlation of HRV and PRV, non-uniformly underestimated across many chronic diseases (cardiovascular, endocrine, neurological, respiratory, and others), concluding PRV is “an invalid surrogate for HRV.” A recent systematic review of 43 studies comparing HRV and PRV found reasonable pooled absolute standardized error (HRV as gold standard) but only 10 of the studies provided quantitative synthesis in ideal conditions. Their main conclusion was similarly cautious: “PPG-derived HRV [PRV] should not be regarded as universally interchangeable with ECG-derived HRV across all devices, populations, and recording contexts.” Factors Affecting HRV and PRV That gets me to the long list of factors that affect HRV (and PRV) besides the device, the type of measurement (RMSSD, SDNN or others), the person’s signal, the sensor site, the duration of data capture, if weighting by sleep stage is used, how artifact is processed and corrected. And this list is not complete!: Oura puts out data from their community of users (who input data) on what affects their overnight HRV. The factors currently provided are: no alcohol (increase 8%), melatonin (increase 2%, float tank (increase 2%), wine (decrease 4%), and party (decrease 14%) in overnight HRV. Must be some big parties! Subscribe What is a PRV measurement good for? It has been falsely characterized as an index of “autonomic balance” and a specific indicator of stress. A 2018 review of the studies available for HRV and its relationship to stress, not using any of the current wearables, found that stress can lower HRV. But so can many other factors. The non-specificity of the signal, indexed to the table above, is striking. Evidence from a UK Biobank study of over 46,000 participants with actual HRV looked at genetically predicted HRV, a genetic risk score, that failed to show the expected HRV-mortality link, indicating that _HRV is likely not causa_l, but rather a reflection of person’s physiologic state. A review of consumer wearable HRV data from 5 longitudinal studies showed that nighttime PRV was not associated with perceived stress, and surprisingly higher HRV, in the largest cohort (N=717 participants), was correlated with higher stress. An Oura ring cohort of 525 first-year college students found a link between overnight PRV and perceived stress, but that was also seen with resting heart rate, sleep, and respiratory rate. Several very small studies have examined the relationship of HRV and athletic injuries or guiding training with mixed, and predominantly negative results. HRV biofeedback training with paced breathing had no significant effect on reducing stress or raising HRV, as demonstrated with sham controlled trials. When HRV for multiple days showed a decline in conjunction with body temperature, the Oura ring published data for prediction of Covid. The WHOOP company sponsored an observational study, published in 2026, of 30,000 users for 72 weeks, without a control group, that reported reduced alcohol intake (5.8 % points) by self-report. That doesn’t tell us much, and particularly about the merits of HRV for behavioral change. If you use the same device and conditions as longitudinal trends for multiple (at least 2-3) weeks that may be the one way to get something useful from the measurements. Data for overnight sleep with minimal motion and using RMSSD is the best proxy for real HRV. The reason to look at trends rather than any given night is that it more likely represents something, even though you won’t know with certainty what the “it” is. Keep in mind there are no data, no peer-reviewed evidence, to show that HRV fluctuation in-person has any correlation with health outcomes. Share Readiness Scores These are proprietary scores that integrate different metrics for each of the wearables: no algorithms have been disclosed. They are unvalidated against health outcomes. In a review of 14 composite health scores of readiness and recovery, HRV contributed 86% to the scores, followed by reading heart rate (79%), physical activity and sleep duration (both at 71%). That review noted the substantial variability in measurement protools and lack of standardization. Sleep staging is notoriously inconsistent and inaccurate by these sensors, which adds further to the HRV uncertainties for what the scores, which use sleep stage data, mean. Only resting heart rate has been shown consistently across devices to be extremely accurate. I’ve made a Table to summarize what we know about which metrics are included, the scores, any peer-reviewed studies that compared the readiness score with health outcomes, and the corresponding (if any, NA-not available) citation. You will note that some companies do not use the term “readiness," such as WHOOP for recovery, and Garmin, which has 2 different scores, one of which is Body Battery. Eight Sleep uses the term “Fitness Score.” They all include HRV; Apple includes a new metric they call “Recovery HRV” which among other components uses 7-days of sleep, but it is unclear what this means or how it is differentiated from other scores (there are clearly no data for outcomes). We have no knowledge of how the different components are weighted or whether any of these scores are better than resting heart rate, HRV alone, physical activity, or any other single metric. Since none of these are standardized, they are not interchangeable, so if you get a 90 for Oura that has no relationship to a 90 on a Google Fitbit Air. Notably, the company can update its algorithm for readiness score at any point without notification to device users. Without any useful evidence of actionability for these scores or established relationship with health outcomes, it is hard to make a case for their value. At the Apple recent announcement they showed their Readiness score (0-10) on the watch (Figure below) but there are no published data on this score, not even on their website. It’s available only on their new Watch Series 12 or Ultra 4 [of course, ;-)]. That exemplifies the problems with these scores, lack of data and evidence for being meaningful to promote health. Perhaps the best study (which isn’t saying much) is the WHOOP Recovery for golfer performance, because it did correlate with an objective outcome, even though there was no control group and the authors were all from the company. Among the 389 pro golfers, an absolute 10-per cent point increase in Recovery score was associated with about 0.5 fewer strokes per round. But that’s hardly a health outcome! WHOOP is also conducting a study in over 2,700 runners to see if their recovery score will be linked to less injuries and improved performance, but that is not yet published and has no control group or randomization. Putting This in Context For two decades I’ve been enthusiastic about the potential for digital health and particularly wearable biosensors. Over the years, we’ve seen some great progress for their ability to promote physical activity and accurately detect atrial fibrillation (the first FDA cleared deep learning AI for consumers). That work was the subject of rigorous research. But there are holes in the data and evidence for other metrics. One notable one is the “VO2 max” story that I wrote about earlier this year. At that time many subscribers asked me to cover heart rate variability, which I finally got to here. When I dived into the research and publication for HRV and readiness scores, I expected to find at least some that were of high quality and demonstrated their utility by linkage to health outcomes. To my surprise, I found none. The wearable sensor measurements for HRV (PRV) are, for the most part, accurate, but that validation work has only been done in small studies of healthy adults and does not take into account the long list of factors, from the device, software side, and the user side, that affect HRV measurements. Moreover, this metric chiefly relies on optical sensing and, as we have learned for heart rate PPG sensing, may be less accurate in people of color. Keep in mind that all of the health outcome association evidence comes from ECG-derived HRV; none are from wearable sensor data. I will repeat the key point: there's no peer-reviewed evidence to show that in-person HRV fluctuation—or efforts to raise your HRV— has any correlation with health outcomes. For those of you who look at your HRV on awakening, or even 2+ week trends of it being low, I hope this context helps to relieve any anxiety. Yes, low HRV (not PRV) has been shown to increase risk of some diseases as summarized above. But efforts to raise your HRV—a surrogate metric— has not been established for improving any health outcomes. HRV does not have any evidence of causality (the genetic evidence actually goes against this possibility). In this summary, I have not included data for other wearable sensors such as Polar, Samsung, Withings, Suunto, Amazfit, Coros, Ultrahuman, or additional mattress sensors. These are beyond my first-hand experience, and as far as I know from my in-depth review none have any peer-reviewed published data that differ from the 6 sensors I’ve reviewed here. From the points I’ve gone over above, we’re not ready for readiness scores. Besides being proprietary, they are predominantly based on metrics that have their own issues. It’s compounding the problem, like building a house without a solid foundation that has never undergone a rigorous inspection, and then selling it. Like I mentioned for PRV, you can look at trends over weeks rather than any single day, to get a handle, but even that may not be helpful. There’s simply no evidence that these scores meaningfully relate to health outcomes. I’d emphasize they might, but that requires doing prospective or randomized studies to prove it. None exist. There’s great promise for HRV/PRV utility_. For example**,**_ Prof Maiken Nedergaard, who discovered the brain glymphatics that are essential in eliminating metabolic waste products from the brain during sleep, has posited that HRV could be a non-invasive marker for neuromodulator oscillations, brain-body regulatory circuits, and brain clearance. That would be extremely useful, but like everything else on HRV and readiness scores it requires solid research and validation. The lay media isn’t helping much to get the story straight. Earlier this year The Economist published a piece entitled “The most useful indicator of your overall health” which ordained HRV as an “accumulated stress score.” That’s akin to the false assertion about VO2max: “V02 max is the singular most powerful marker for longevity.” As I’ve summarized here, that is not established. The fact is that so many things can lower HRV, including physical exercise (especially an intense workout), reduced sleep quality, stress, the list above, no less the device, signal, and software. Whatever fluctuations observed have not been correlated with any health outcome. Sadly, “datamaxxers” are widely using HRV and readiness scores that have never been validated to mean anything. We already know that for some people using the sensors for sleep metrics, it can induce “orthosomnia,” an obsession to get high sleep quality, with associated high levels of anxiety. In an experiment done by a company to promote sleep quality for its employees, “For those employees who did use the trackers, many reported feeling perfectly rested until their tracker told them they had had a terrible night. Others were told that they had slept like a baby when they had actually been lying awake worrying about the quality of their sleep. “ The same problem can result from preoccupation with HRV or readiness scores, with anxiety that would lead to further reduction in both. It you are using a wearable like >100 million American adults, it’s OK to look at these data, but contextualized with the major caveats reviewed here. If you are one to require evidence that HRV or readiness scores are linked to health outcomes, you may not even want to look. The companies make it hard to turn them off! Let me end with the companies that make and sell wearables. Apple’s doubling down on HRV (24-fold more reporting and heart rate very 5 seconds) and introduction of a Readiness score tells us that consumers have bought into these metrics and they are joining the club. However, all of this is occurring with a backdrop of tens millions of users, claims about the data that are not backed up by adequate evidence, marketing way out in front of whatever limited data exists, and not being transparent about their readiness score algorithms. The companies can well afford to do the research that is needed to connect these metrics with health outcomes show, once and for all, that increasing HRV or using readiness scores promotes our health. If they believed and invested in the products they are selling, we’d not be in this position of not knowing. That’s essentially where we are with HRV and readiness scores. Perhaps someday this will change and we’ll have good reason to embrace them. NB: I wrote this post. No AI. I have no conflicts of interest with any of its content. Loading... Ground Truths has 215,000 subscribers from every US state and 214 countries. There are over 300,000 followers of Ground Truths so more than 90,000 folks who can easily convert to be free subscribers. Your subscription to these free essays and podcasts makes my work in putting them together worthwhile. If you’re not a subscriber, please join! If you found this interesting PLEASE share it! Share Ground Truths The proceeds from all voluntary paid subscriptions go to support our summer internship program. It enabled us to accept and support a record number of 62 summer interns that joined us in 2026! These are high school, college and medical students selected from thousands of applicants. We couldn’t do this expanded program without the funds coming in through Ground Truths. Thank you!
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