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Your Thymus and Your Healthspan

Our thymus gland plays a central role in the development or our immune system, specifically for supporting T cell development (how these cells got their name, maturation and differentiation in the thymus) and discriminating between self and foreign, non-self antigen proteins with production of dendritic cells. As we age, our thymus gland shrinks—the process known as involution—with progressive change from spongy to fatty tissue, with loss of functionality. But this process, with respect to timeline and extent, markedly varies from one person to the next. And to make things even more complicated, our thymus gland anatomy and precise location in the chest also is highly variable. So the famous Frank Netter diagrams from the 1960s (such as at left below) don’t capture the remarkable heterogeneity that a random set of 12 chest CT scans (below at right). What I consider as 2 landmark papers in Nature this week (here and here) used AI to quantify health of the thymus in 2 large cohorts, and then correlate the metric to a broad array of health outcomes. In this edition of Ground Truths, I’m going to cover three questions: (1) How was thymus health determined by AI?; (2) How is thymus health linked to key clinical outcomes? and (3) Are there ways we can promote a healthy (aka rejuvenate) thymus gland in our later years? Subscribe 1. How was thymus health determined by AI? This was accomplished by extensive work developing and validating an AI pipeline for 2 stages, the first for localization and segmentation of the thymus bed, and the second to quantify a digital marker, termed the thymic health score. There’s a lot to this algorithmic development, so I won’t go into all the details, but just provide a rudimentary outline of what was done. The 1st stage used supervised learning with 2 radiologists reviewing 2,461 chest CT scans. That work trained a 3D U-Net model to automatically identify the thymic bed’s 3D cropped region using center of mass coordinates, which reached 99.8% accuracy. The 2nd stage used a foundation model that was pre-trained with SwAV (which stands for Swapping Assignment between multiple Views), a self-supervised model, that generated a high-dimensional thymus representation of 4,096 features. That compares to the radiology reductionist and subjective scoring of 0 to 3 where 0 means the thymus is fully degenerated and fatty, and 3 is considered dense, intact glandular soft tissue. Notably, the self-supervised learning (SSL) performance was superior to supervised (AUC ~0.75 vs 0.55, respectively) reflecting the shallowness of the 0-3 classifier vs SSL’s holistic, self-taught AI. The thymic health score ranged from 0 to 100, with the highest number indexed to fully preserved thymic health. The algorithmic work extended to explainability with both Shapely value distribution, meaning the model was holistic not relying on any “magic” pixel, and occlusion sensitivity, demonstrating the model’s performance was not affected by ribs, sternum, lung tissue, but rather focused on the thymic bed directly. Below are a few saliency maps from the occlusion sensitivity that indicate the thymic bed focus, not affected by neighboring structures, using the jet color scale. Now the AI was ready for processing ~25,000 CT scans, each over 30 MB files, from the 2 large participant cohorts to provide a thymic health score, it did so in less than 14 hours, which is less than 2 seconds per scan! Share 2. How is thymus health linked to key clinical outcomes? The two cohorts were the National Lung Screening Trial, NLST (N=25,031) and the Framingham Heart Study, FHS (N=2,581) each with baseline demographics and long term follow up of >12 years for health outcomes. From the NSLT, you can see below that increased age and body-mass index were correlated to reduced thymic health. And, overall, men had reduced thymic health scores compared with women. There are a lot of graphs in the paper for outcomes, for both the NLST and FHS cohorts. To simplify the major outcomes, below is a composite Figure with striking reduction of all-cause mortality and for the different causes of death. The results were consistent between the 2 cohorts. For example, the cardiovascular mortality hazard ratio average was 0.57 in NLST and 0.38 in FHS (weighted to be 0.53 for the aggregate). The reduction of mortality also extended to digestive diseases and pulmonary disease (data not shown below). Lung cancer incidence was reduced by 36% for high vs low thymic health (Figure below, with a panel -incidence and b panel-mortality, adjusted for age, sex, BMI, smoking status). Notably, there was a smoker’s paradox: lower incidence and improved survival for lung cancer in smokers who had a high thymus health score. Smoking was associated with lower thymic scores whereas alcohol was not. Higher thymic health was linked to higher HDL cholesterol, lower triglycerides, lower fasting blood glucose, and lower systolic and diastolic blood pressure. Inflammation biomarkers, such as C-reactive protein and interleukin-6, were elevated in the people with lower thymic health scores. In their second paper, the same team looked at the relationship between thymic score and outcomes for 3,476 patients receiving cancer immunotherapy. The non-small cell lung cancer progression-free survival was reduced in patients with low thymic health score. A parallel relationship for survival was seen for other types of cancer including melanoma, breast, and kidney with a 44% lower risk among high thymic scores (Figure). A similar pattern was seen with different immune checkpoint inhibitors. The thymus health score outperformed programmed death ligand-1 (PD-L1)and tumor mutation burden (TMB) assay of the tumor and was an independent prognostic marker of progression-free survival. In this dataset, a direct connect with thymus score and adaptive immune function was noted with a correlation before cancer treatment for both T-cell diversity and thymus T-cell production (a metric known as T cell receptor excision circles). Thymus Removal Study There is a highly relevant citation about thymus function before moving onto ways to rejuvenate it. In 2023, a very important study of thymus removal during cardiothoracic surgery was published, with 1146 patients undergoing thymus removal vs 1146 matched controls (mean age 55 years). The adverse outcomes for thymus removal were striking, with a 2.9 higher risk of all-cause mortality and doubling of cancer incidence, 1.5 fold increase in cancer mortality, and 1.5-fold increase in autoimmune diseases. The immune function showed marked compromise after thymus removal, as reflected by CD4+ and CD8+ T cells (Figure below) Share Ground Truths 3. Are there ways we can promote a healthy (aka rejuvenate) thymus gland in our later years? In recent months we’ve learned a lot about the process of thymus involution and the pathways by which this may be modulated. Thymus involution is primarily due to loss to thymus epithelial cells (TECs) and there are 2 subtypes with different functions: the cortical, responsible for positive selection of T cells, and the medullary, for negative selection. When adipose tissue infiltrates the thymus, thymic adipocytes are pro-inflammatory, knocking out T-cell output. Likewise, systemic inflammation, or “inflammaging,” from smoking, obesity, and chronic stress promote thymic adipocytes. Now, from preclinical studies, we know about key pathways that account for these processes. Historically, back in 2014, FOXN1 was recognized as a single master transcription factor essential for TEC function, with studies in mice with forced FOXN1 upregulation leading to thymus regeneration. That laid the foundation for potential regrowth of quiescent thymus cells. It took awhile to find pathways to accomplish this goal and to even refute its role as the master regulator. The Liver-Thymus Axis Feng Zhang and his team recently showed that injection of an mRNA vaccine to the liver encoding DLL1, IL-7 and FLT3-L in combination, factors known to support thymopoiesis (Figure), successfully enhanced immune function in aged mice. However, the effect was transient. The FGF21 Story Two reports in 2025 addressed the thymus gland’s production of FGF21, a growth factor (fibroblast growth factor 21) and its control of thymus involution. This growth factor is also produced by the liver, but it doesn’t have impact on the thymus in aged rodent models. In contrast, The liver’s hepatocyte growth factor (HGF) has been shown to reverse senescent TEC structural changes. Growth hormone stimulates production of insulin growth factor-1 (IGF-1) in the liver and the thymus. Two small studies in human participants (TRIIM, for Thymus Regeneration, Immunorestoration, and Insulin Mitigation) of 6 and 50 people, respectively, treated with combined human growth hormone, metformin and DHEA, suggested the potential of slowing epigenetic aging and improving thymus mass and function. But the combination of drugs, small sample, and lack of controls make conclusions murky. Increased thymus FGF21 led to increased CD8 T cells in old mice and extended healthspan and improved physical performance. Building on the previous FOXN1 data, ablation of β-klotho, the obligatory co-receptor for FOXN1, accelerated thymic aging. The benefit to FGF21 was confirmed in a companion paper using an FGF21 knock-in mouse model showing thymus enlargement and increased TECs throughout the lifespan. (schematic Figure below). The accompanying editorial for these 2 papers speculated: “The proposed link between age-associated thymus involution and organismal aging is intriguing, and suggests we might seek to achieve systemic rejuvenation by counteracting thymic involution.” Other Factors Lessons from the Axolotl (Mexican Salamander) In an elegant set of experiments of the axolotl (Figure), known for its complete thymus regeneration after total surgical removal, mediators were identified. Surprisingly FOXN1 was dispensable. But midkine, a growth factor, appeared to be the driver, the initiator of thymus cell growth, survival, and repair. Other components that contributed were Postn+ (periostin-expressing mesenchymal niches) and Ccl19, a chemokine protein from the bloodstream. RANK and RANKL RANK (receptor activator of nuclear factor κB its ligand (RANKL) have been considered key regulators of medullary TECs. In a study of both aged mice and human thymus cell cultures, their key role was confirmed, with multiple benefits of resorting TEC function, recruitment of progenitor cells, and T cell development. Subscribe Summing Up This body of work strongly supports the health of the thymus gland as a critical regulator of human healthspan, not just a correlate or link. The new landmark studies are reinforced by the regenerative biology experimental models that have shown, via an array of mediators, that healthspan of aged mice is at least in part dependent on thymus gland function and its critical role for maintaining adaptive immunity. It sure seems that we’d be better off having an immune reservoir of naive T cells instead of a profile in older adults of exhausted, low quality, memory T cells, with a senescent phenotype. It is striking that we ignored the importance of the thymus gland for many decades. A wake-up call was the results of the thymectomy matched control study reviewed here, with the opposite of high thymic health score improved health outcomes. The convergence of AI and healthspan here is notable. The exceptional and laborious work for developing and validating (no less explaining) the AI to quantify thymus health set the foundation for probing the connect the major health outcomes in two cohorts with extensive follow-up. We’ve never had a way to meaningfully quantify the thymus gland before, so this represents important leverage of supervised, self-supervised, and transformer models. The study wouldn’t have been possible without AI. And it begs the question as to whether there are ways we can maintain our thymus at a high health score. But it’s not so simple to rejuvenate our thymus. There are multiple risks including the induction of autoimmunity, increasing the risk of cancer, and inducing a pro-inflammatory state. For example, factors that increase TEC proliferation could compromise the medulllary negative selection process and leak out auto-reactive (self-attacking) T cells. Thymic cells could be induced to proliferate, but we know, for example, that growth hormone and IGF-1 are associated with an increase risk of cancer. If thymus rejuvenation doesn’t clear out the accumulated senescent cells in older adults, then inflammation within the gland could block the production of TECs. Keeping these risks in mind, we now have identified many ways to keep our thymus healthy as we age that undoubtedly will be tested in clinical trials going forward. Ultimately, the benefit-to-risk tradeoffs will be defined. In the meantime, we have desperately needed an immunome. As I’ve stressed in multiple prior Ground Truths, we have no test in the clinic to assess a patient’s immune status! It was very encouraging for me to get an email from Hugo Aerts, the senior author of the landmark papers in the days after they were published: “I also wanted to say that your Substack on “Why We Need an Immunome” was inspiring for this work. We found it a very compelling perspective and greatly enjoyed reading it.” Just having an assessment of a person’s immune status via a chest CT scan, with millions of these performed per year, might help in guiding the right immunotherapy for cancer (e.g. more intensive, combinations for those with low thymic health scores) and help define people who are increased risk for age-related diseases of cancer, cardiovascular, and neurodegenerative. The main theme of Super Agers is that we now have many layers of data (genetics, proteins, biomarkers, organ clocks that can be integrated via multimodal AI) for us to define a person’s specific risk decades before one of these age-related diseases leads to symptoms, enabling prevention. From the new studies this week, we can add thymus health score as yet another way to understand a person’s risk, a window into their adaptive immune system and healthspan. And perhaps someday we will be able to safely rejuvenate the thymus, or maintain its health through one’s life, and use the thymus health score to monitor. NB: I wrote this post (No A.I.) A Quick Poll Loading... ********************************************************************* Thanks to Ground Truths subscribers (now > 200,000) from every US state and 212 countries. Your subscription to these free essays and podcasts makes my work in putting them together worthwhile. Please join! If you found this interesting PLEASE share it! Share Ground Truths Paid subscriptions are voluntary and all proceeds from them go to support Scripps Research. They do allow for posting comments and questions, which I do my best to respond to. Please don’t hesitate to post comments and give me feedback. Let me know topics that you would like to see covered. Leave a comment Many thanks to those who have contributed—they have greatly helped fund our summer internship programs for the past two years. It enabled us to accept and support 47 summer interns in 2025! We aim to accept even more of the several thousand who will apply for summer 2026.

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Mar 5 • 9:51 AM EST • Sports • live5news.com
Man shot and killed outside North Charleston sports bar, police say

The North Charleston Police Department is investigating a late-night shooting that left a man dead outside a Rivers Avenue sports bar.

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Mar 5 • 9:51 AM EST • Sports • live5news.com
Politics experts discuss U.S.-Israel war on Iran

An Iowa soldier killed. A war in its fifth day. This episode, analysis of the U.S.-Israel war on Iran — and Congressional moves to check the president. Political scientists Jim McCormick and Kelly Shaw join the program to discuss these developments.

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Mar 5 • 3:00 AM EST • Politics • iowapublicradio.org
Beyond the Valley – Entertainment: Riverboats schedule 2026 stops in Marietta

MARIETTA — A schedule has been announced for two passenger river cruise ships that will be in Marietta this summer. The American Melody and the American Heritage will make a combined 14 stops in Marietta between July 1 and Aug. 24 at the levee on the Ohio River, the Marietta-Washington County Convention and Visitors Bureau […]

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Mar 4 • 7:00 PM EST • Entertainment • newsandsentinel.com
Dick’s House of Sport coming to Valley River Center

Dick’s House of Sport, billed as an immersive sports shopping experience, is coming to the Valley River Center. ​

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Mar 4 • 4:14 PM EST • Sports • lookouteugene-springfield.com
AHA podcast: Advancing Community Health

Doug Brown, partner with Manatt Health and current chair of the AHA’s Foster G. McGaw Prize Committee, discusses how hospitals are tackling food insecurity, workforce development, safe neighborhoods and other social drivers of health through authentic community partnerships. Discover what it takes for hospitals to truly serve as cornerstones of their communities, and how the Foster G.

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Mar 4 • 9:43 AM EST • Health • aha.org
Control Resonant First-Look Preview – This Is No Soulslike. It’s Faster

We got a look at a behind-closed-doors gameplay demo of Control Resonant, and it’s not just that it's a markedly different and not just a same-y sequel, but it’s that its melee combat might scratch my Ninja Gaiden-style itch. “This is not a soulslike,” said lead gameplay designer Sergey Mohov. “It’s a push-forward, action-driven, aggressive-playstyle action game. The player is very much in charge and not [simply] reacting. The main driver of combat is you.” Tell me more, Remedy.

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Mar 4 • 9:00 AM EST • Technology • ign.com
Mirro, Dollar General, big blue crane among top February business news

In the month of February, reporter Patti Zarling wrote about the former Mirro site and mall site development, business growth in Two Rivers and more.

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Mar 4 • 6:00 AM EST • Business • yahoo.com
Blue Bat Kitchen & Tequilaria closes for 1 day after health inspection

Blue Bat reopened March 3 after the restaurant resolved "several matters" found during a health inspection, the restaurant said in a statement.

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Mar 3 • 4:59 PM EST • Health • jsonline.com
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Everton v Burnley: Key stats and talking points

Everton will be looking to arrest a sharp decline in their home form when Burnley make the relatively short trip to Hill Dickinson Stadium on Tuesday (19:30 GMT). The Toffees, who sit eighth, won five of the first nine league games at their new ground on the banks of the River Mersey, but they are winless in their past seven, their worst run at home since going nine without a victory at Goodison Park between April and October 1998. Back-to-back losses at home to Bournemouth and Manchester United were followed up by an impressive 3-2 win over Newcastle United in a lively game at St James' Park on Saturday.

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Mar 3 • 4:02 AM EST • Sports • sports.yahoo.com
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Redding Rancheria gives first tour of $222M tribal health village near Win-River Casino

Construction is underway on a major new health care and wellness campus for the Redding Rancheria, a project tribal leaders say will become the largest tribal h

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Mar 2 • 11:40 PM EST • Health • krcrtv.com
DC Health lifts Potomac River recreation advisory after tests show safe E. coli levels

The District Department of Health has lifted its recreational advisory for the Potomac River effective immediately, water quality testing showed bacterial level

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Mar 2 • 12:17 PM EST • Health • wjla.com
DC health officials lift water advisory on Potomac River after sewage spill

D.C. health officials are lifting a recreational advisory on the Potomac River, citing an improvement in water quality after a sewage line collapsed in January.

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Mar 2 • 10:07 AM EST • Health • wtop.com
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Texas primaries could test whether Latino support for GOP is holding after 2024 gains

The GOP made big strides with Latino voters in 2024. Immigration and the economy were key drivers, but two years later, those issues could sway them to back Democrats in primaries happening this week.

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Mar 2 • 5:00 AM EST • Politics • npr.org
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South Korea's Juristocracy Moment Reflects a Deeper Political Divide

In South Korea, deep ideological polarization turns courts into arbiters of power, making judicial rulings a key driver of political legitimacy.

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Mar 1 • 10:35 PM EST • Politics • japan-forward.com
Alex Bowman Exits NASCAR COTA Race Early, Fox Sports Spotter Myatt Snider Fills In

Hendrick Motorsports worked hectically to find a reserve driver after Alex Bowman realized he would be unable to finish the race. O'Reilly's driver, Myatt Snider, on top of the Fox pitstand, answered the call.

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Mar 1 • 6:23 PM EST • Sports • roadandtrack.com
Bruce Springsteen Has An Extensive Car Collection, But There's Only One European Model In The Bunch

The only European car Bruce Springsteen owns is a 2009 Land Rover Range Rover L322. It's one of his daily drivers, along with Jeep Cherokees.

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Mar 1 • 4:25 PM EST • Technology • jalopnik.com
Is Sahara Desert dust secretly feeding the Amazon? The science behind a 10,000-mile journey

Science News: New NASA-led research reveals Saharan dust transports phosphorus to the Amazon, forming a 10,000-mile atmospheric river that helps sustain rainforest health. Learn how CALIPSO data links Africa's dust to the rainforest's vitality.

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Mar 1 • 2:52 PM EST • Science • timesofindia.indiatimes.com
Kansas revoked transgender people’s IDs overnight – researchers anticipate cascading health and social consequences

With invalid driver’s licenses and birth certificates, transgender people are at risk for more than just steep fines and imprisonment.

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Mar 1 • 10:33 AM EST • Health • theconversation.com
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Republican responds: neighbors before politics

To the editor, I read with great interest and compassion the recent letter from a neighbor, Emily Shapiro, who submitted “Is it too late to know thy neighbor?” in the Riverdale Press’s …

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Feb 28 • 7:00 PM EST • Politics • riverdalepress.com
DC invites small businesses to be part of the RFK redevelopment project

In an interview with WTOP, Mayor Muriel Bowser said the Commanders agreed that 40% of project spending would be awarded to D.C. companies.

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Feb 28 • 5:53 AM EST • Business • wtop.com
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DC Public Health to begin daily testing of Potomac, Anacostia rivers for E. coli

Beginning on Monday, the D.C. Department of Health will be conducting daily tests for E. coli in the Potomac and Anacostia rivers.

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Feb 27 • 11:09 PM EST • Health • fox5dc.com
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500 students show off work at the Riverside County Science and Engineering Fair
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Feb 27 • 7:36 PM EST • Science • cbsnews.com
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Downtown partners launch cross-promotion strategy to boost business

With the Maumee River as a backdrop, city, county and tourism officials gathered Friday at Glass City Pavilion to unveil a coordinated downtown activation ...

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Feb 27 • 11:10 AM EST • Business • toledoblade.com
Coachella Valley Students Shine at Riverside County Science and Engineering Fair, Top Winners Advance to State and International Competition

Students from across the Coachella Valley showcased innovative research at the Riverside County Science and Engineering Fair. Top winners will move on to the st

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Feb 27 • 7:00 AM EST • Science • nbcpalmsprings.com
This Under-the-Radar Business Could Become an Enormous Growth Driver for Nvidia

This new growth driver is already showing its strength.

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Feb 27 • 4:30 AM EST • Business • finance.yahoo.com
Cal Baptist defeats UT Arlington 68-56

RIVERSIDE, Calif. (AP) Dominique Daniels Jr.'s 28 points helped Cal Baptist defeat UT Arlington 68-56 on Thursday.

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Feb 27 • 12:29 AM EST • Sports • cbssports.com
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The science of Ramadan fasting

UC Riverside’s Dr. Sherif Hassan breaks down the medical benefits and potential risks of fasting.

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Feb 26 • 4:23 PM EST • Science • universityofcalifornia.edu
EGLE says pellet spill poses no public health risk as Kalamazoo River cleanup continues

Thousands of pounds of plastic pellets, known as nurdles, spilled along I-196 and into the Kalamazoo River near Saugatuck almost a month ago.

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Feb 26 • 3:39 PM EST • Health • wwmt.com
Bedrock, Rock Entertainment Group unveil plans for 6,200-seat outdoor amphitheater on Cleveland riverfront operated by Live Nation
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Feb 26 • 10:30 AM EST • Entertainment • wkyc.com
NVIDIA “unlaunches” its GeForce 595.59 driver after reports of fan and clock issues

NVIDIA unreleases its latest Game Ready drivers We just noted on X/Twitter that, for the first time in a long time, all three major GPU vendors released a

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Feb 26 • 7:00 AM EST • Technology • videocardz.com
Will drivers still make a difference in F1 in 2026?

Have F1's new rules damaged its status as the ultimate challenge? Andrew Benson assesses what the drivers are having to do differently and whether skill still matters.

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Feb 26 • 1:44 AM EST • Sports • sports.yahoo.com
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Entertainment Highlights: Film festival aims to offer ‘something for everyone’

WHITE RIVER JUNCTION — For just over two decades, the annual White River Indie Film Festival has served as a gathering place to catch the latest independent projects from Upper Valley filmmakers and those working farther afield. In recent iterations of WRiF, programming has swelled to include not just movies but other art forms and […]

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Feb 25 • 3:45 PM EST • Entertainment • vnews.com
Platform Science Unveils Landmark Driver Experience Report on Pay, Technology, and Retention

SAN DIEGO, February 25, 2026--Platform Science, the leading connected vehicle platform, today released its inaugural Driver Experience Report, a nationwide survey of more than 1,100 commercial drivers on factors like pay and technology that most influence their job satisfaction. The report provides data-driven insights into truckers’ perspectives on topics like communication, compensation, safety, and long-term retention, establishing what Platform Science believes are the industry’s first bench

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Feb 25 • 9:00 AM EST • Science • finance.yahoo.com
Cal Baptist University cutting 3 major sports programs, including wrestling

A significant change is on the way for the athletic program at California Baptist University after it announced three major sports programs are being cut. The private university, located in Riversi…

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Feb 24 • 8:59 PM EST • Sports • ktla.com
Chevy Corvette ZR1 Sets Car And Driver's New Lightning Lap Record, Beats McLaren Senna By 0.7 Seconds

This isn't one of those, "Sure it's quick in a straight line, but what about corners?" conversations that people normally have about cheap American performance.

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Feb 24 • 5:29 PM EST • Technology • jalopnik.com
Blaming beavers for flood damage is bad policy and bad science, research shows

Beaver dams are critical to river health and a source of biodiversity. They create wetlands, slow water and improve water quality. They also reduce flood peaks and delay runoff. But beaver dams are often ...

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Feb 24 • 2:32 PM EST • Science • phys.org
Cleveland's next big sports destination: Cosm

The venue will serve as an anchor for Cleveland's riverfront development plan.

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Feb 24 • 6:20 AM EST • Sports • axios.com
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The science of Ramadan fasting

UC Riverside’s Dr. Sherif Hassan breaks down the medical benefits and potential risks of fasting

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Feb 23 • 7:12 PM EST • Science • news.ucr.edu
Dirty Business review – if this doesn’t incite righteous anger over our filthy water then nothing will

Based on the true story of amateur sleuths appalled at the dumping of sewage in our rivers, this drama starring David Thewlis is a blast of controlled fury – and could become the next Mr Bates vs the Post Office

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Feb 23 • 5:05 PM EST • Business • theguardian.com
Channel 4’s Dirty Business is a clarion call to nationalise the water industry

As the drama shows, private firms no longer able to pollute the coast of England of Wales just switched to rivers instead

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Feb 23 • 4:00 PM EST • Business • theguardian.com
Introducing Compassionate Care to Undergraduate Health Science Students and Evaluating Its Implementation: A Pilot Study

Introduction: Healthcare education faces a documented "empathy crisis," where students often experience a decline in empathic capacity during clinical training. While compassionate care is funda...

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Feb 22 • 7:00 PM EST • Science • cureus.com
A giant blade-crested spinosaurus, the “hell heron,” discovered in the Sahara

Deep in the heart of the Sahara, scientists have uncovered Spinosaurus mirabilis — a spectacular new predator crowned with a massive, scimitar-shaped crest that may once have blazed with color under the desert sun. Discovered in remote inland river deposits in Niger, the fossil rewrites what we thought we knew about spinosaur dinosaurs, suggesting they weren’t fully aquatic hunters but powerful waders stalking fish in forested waterways hundreds of miles from the sea.

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Feb 22 • 7:00 PM EST • Science • sciencedaily.com
New oxygen gel could prevent amputation in diabetic wound patients

Chronic wounds often spiral out of control because oxygen can’t reach the deepest layers of injured tissue. A new gel developed at UC Riverside delivers a continuous flow of oxygen right where it’s needed most, using a tiny battery-powered system. In high-risk mice, wounds healed in weeks instead of worsening. The innovation could dramatically reduce amputations—and may even open doors for lab-grown organs.

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Feb 22 • 7:00 AM EST • Science • sciencedaily.com
Yet Another Fix Coming For Older AMD GPUs On Linux - Thanks To Valve Developer

Timur Kristóf of Valve's open-source Linux graphics driver team has been doing a fantastic job enhancing the older AMD Radeon GPU support under Linux

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Feb 22 • 6:48 AM EST • Technology • phoronix.com