Health.

A four-week trial of low-dose rapamycin raised cerebral blood flow in middle-aged carriers of the APOE4 gene variant, with the biggest gains in women.

A University of Toronto study found three daily servings of whole dairy left weight and cholesterol unchanged against a low-dairy diet — and it's circulating widely again months after it first published.

Cold Spring Harbor researchers say immune-triggered damage to a protective layer of placental cells may help explain why autism-like traits emerge almost exclusively in male mice after prenatal inflammation.

University of Washington researchers say year-round daylight saving time would send millions more children to school before sunrise, compounding a known traffic-safety risk.

A year-long USC study of 46 children ties heavier snack and soda intake to a stronger brain reaction to food cues — and to gains in body fat, though the researchers caution the link isn't proven to be causal.

A University of Georgia analysis of more than 8,000 older adults found that each point of cumulative BMI increase tracked with a faster rate of decline in memory and executive function.

A study tracking roughly 64,000 UK adults found that walking faster, even for fewer total steps, was linked to meaningfully lower mortality risk, challenging a decades-old fitness target with roots in 1960s marketing.

Nearly half a million people were tracked for almost a decade; habitual tea drinkers had modestly lower vascular disease risk, but those who drank it "burning hot" fared worse, not better.

A Dutch trial found 16 weeks of peanut-eating improved insulin signaling in memory-related brain regions, though the research was funded by a peanut industry group.

Federal data show influenza arriving weeks ahead of its usual schedule, with H1N1 dominant and hospital admissions forecast to keep rising.

Daylight saving time ended across most of the US at 2 a.m., and sleep researchers say the twice-yearly clock change carries measurable, if short-lived, health costs.

A UK Biobank analysis of nearly 88,000 adults found that skimping on daytime brightness was a stronger predictor of dementia than several well-established risk factors — though the authors stress it's an association, not proof.

A six-month program combining a very low-calorie diet with supervised exercise reversed early-onset type 2 diabetes in 54% of participants, versus 4% on standard care, researchers reported.

Made from each patient's own tumor, the experimental vaccine from Moderna and MSD slashed the chance of skin cancer returning when paired with the immunotherapy drug Keytruda.

The health secretary's plan would let compounding pharmacies prepare peptides like BPC-157 and Semax that have never been approved by the FDA, despite the agency's own staff recommending against it.

Finnish researchers found that heat exposure followed by a brief cold shower temporarily mobilizes white blood cells, mimicking a response normally seen during exercise.

UVA researchers identified a small cluster of brainstem neurons that keeps blood pressure steady moment to moment, a discovery that could reframe how instability is diagnosed.

Adults with knee osteoarthritis who took the prebiotic fiber inulin for six weeks saw less pain and better grip strength than expected, and stuck with it far more easily than a comparison group doing physical therapy alone.

A new study in rats found that aerobic training reshapes the nerve clusters that control heart function differently on the body's left and right sides, a finding researchers say could one day guide arrhythmia treatment.

Videos claiming pale skin, dark circles and brittle hair reveal low iron have racked up millions of views, but doctors say appearance alone can't diagnose a deficiency.

A new genetic analysis of the landmark ASPREE trial found low-dose aspirin dramatically cut dementia risk in some older adults, but also sharply raised their risk of major bleeding — and doctors say it's too early to act on it.

An EEG-guided magnetic stimulation therapy, cleared by regulators earlier this year, is drawing fresh attention for results far above those typically seen with medication alone, though full trial data has not yet been published.

Corroding titanium particles, not just bacteria, appear to trap immune cells in a destructive inflammatory loop — a discovery researchers say offers the first real drug target for a condition affecting one in five implant patients.

Even after omega-3 levels measurably rose in participants' spinal fluid, researchers found no improvement in memory or brain shrinkage among older adults at elevated Alzheimer's risk.

Moderna and Merck's tailored cancer vaccine, paired with the immunotherapy drug Keytruda, marks what researchers call a milestone for personalised cancer treatment.

The detection in a hunter-harvested elk in Pecos County marks the parasite's first confirmed jump into American wildlife since it re-entered the US earlier this year, and officials are urging hunters and ranchers to stay vigilant.

A 12-week Penn State study found short daily bursts of resistance exercise improved balance, leg strength and the ability to rise from a chair — all key predictors of independence in older age.

New rules would restrict high-risk procedures like liquid Brazilian butt lifts to trained professionals and ban them outright for under-18s, following deaths and serious injuries.

A Mount Sinai analysis of nearly 2,000 blood samples found distinct immune signatures up to a decade before inflammatory bowel disease was diagnosed.

Pooling data on nearly 16 million people, researchers found ADHD tied to sharply higher mortality from suicide, injury and natural causes — with treatment linked to better odds.

A Columbia University team says a mutation in the fibronectin gene keeps the brain's blood vessels from clogging — and could point toward a new kind of drug.

Trained on 35,000 photos of cancer patients, an experimental AI tool looks at the skin near the eyes to estimate survival odds. Outside experts call it a promising proof of concept, not a clinical tool.

A preliminary study of nearly 90,000 French adults ties heavy intake of Neu5Gc, a sugar molecule concentrated in beef and lamb, to a 63% higher risk of type 2 diabetes, though researchers caution the finding is observational and not yet peer-reviewed.

New guidance from the nation's leading OB-GYN group makes hormone therapy the first-line option for hot flashes and night sweats, while adding newer non-hormonal drugs for women who can't take it.

Lab-grown tumors built from patient samples show that rare gamma delta T cells can recognize and kill small cell lung cancer, pointing to a possible new immunotherapy.

Fentanyl cut with veterinary tranquilizers and lab-made opioids is straining recovery and detection efforts from Ohio to Illinois.

A 27-year population study in the Cincinnati area found stroke incidence among adults 20 to 54 climbed sharply as high blood pressure, diabetes and substance use became more common.

Executives say they are prioritizing where to test their combined mRNA-Keytruda regimen next after a Phase 3 trial delivered the first positive late-stage result for an mRNA cancer therapy.

A new federal survey item finds binge eating common among high schoolers, with sharply higher rates among girls and among Hispanic and Black students.

New Youth Risk Behavior Survey data link the behavior to heavy social media use, poor mental health and suicidal thoughts — though the CDC cautions the findings don't show cause and effect.

DonnaJean Wilde opened the Huntsman World Senior Games in Utah by beating the Guinness record she'd set two years earlier — by nearly half an hour.

A federal survey analysis found no drop in treatment-seeking among people with depression who had used psilocybin — though many reported their care needs still weren't being met.

CDC data show more than 4,000 confirmed cases this year, with 95% of patients unvaccinated or of unknown status, prompting Governor Hochul's statewide disaster declaration.

A 93-country analysis links higher cat ownership to higher national happiness scores — and lower rates of a cat-borne parasite tied to worse mood.

Early surveillance shows activity already above typical levels for early October, driven almost entirely by an H1N1 strain, as a new mRNA-based flu vaccine reaches pharmacies.

An update to the world's most comprehensive review of e-cigarette trials found high-certainty evidence that nicotine vapes help more smokers quit than traditional nicotine replacement therapy, though researchers stress they are not risk-free.

A year-long, placebo-controlled study of 410 patients found nicotinamide riboside did not slow Parkinson's disease and was linked to modestly worse motor and nonmotor scores than placebo.

University of Birmingham researchers used living human brain tissue to show that blocking a receptor called P2X7 sharply curbs neuroinflammation — a preclinical finding the team says could speed existing drugs toward trials.

A University of Liverpool-led trial found adults lost comparable weight whether they drank diet beverages or plain water over two years, challenging cautious WHO guidance on artificial sweeteners.

A Johns Hopkins study in lab-grown lung organoids and mice finds that smoke exposure has to come before a cancer mutation — not the other way around — for tumors to form, with different mutations steering cells toward different cancers.

More than 1,000 cases, nearly 200 hospitalizations and five deaths have been tied to an outbreak that took hold where childhood vaccination rates had slipped below the level needed to stop the virus from spreading.

Scientists at King's College London found that a compound produced from eating pomegranates, walnuts and berries improved heart function in lab studies, offering a new lead against a common, hard-to-treat form of heart failure.

An analysis of 1.4 million volunteers found more than a third have hypertension — and most of those cases go undiagnosed or poorly controlled, researchers reported.

A small but carefully controlled study found that coffee, caffeinated or not, reshapes gut bacteria in ways tied to mood, memory and attention.

A study of more than 100,000 U.K. adults found that walking briskly can offset a low daily step count, though the researchers stress their data show correlation, not proof that pace itself extends life.

A Cleveland Clinic trial of a one-time CRISPR gene-editing infusion kept cholesterol and triglycerides sharply lower a year later, but the study enrolled just 15 patients and was funded by the drug's maker.

A deep-learning model screened millions of compounds to flag two early-stage antibiotic candidates that killed drug-resistant gonorrhea bacteria in lab and animal tests, though human trials are still years away.

An analysis of a long-running U.S. heart study found adults who ate the most ultra-processed food had a substantially higher risk of heart attack, stroke and related events than those who ate the least, with the gap widest among Black participants.

Weill Cornell and HSS researchers found a stem cell that, when overactive, drives the ligament overgrowth behind lumbar spinal stenosis — and point to an existing blood-pressure drug class as a possible way to calm it.

A 400-person study presented at a major diabetes conference found people felt better the day after wider — but still safe — glucose swings, raising questions about how rigid glucose control should be.

A three-month study of 204 Canadian couples found a sleepless partner's habits ripple into the other's eating, even when both are trying to eat better.

The newly identified Asian longhorned tick nairovirus turned up in one of every ten feverish tick-bite patients tested, and turned deadly mainly when paired with a virus doctors already watch for.

A 12-week Texas A&M trial found middle-aged adults gained lean muscle on creatine alone — and gained even more when they paired it with exercise and a calorie-reduced diet.

A South Korean randomized trial found that common blood thinners sharply lowered strokes and other serious events in atrial fibrillation patients previously seen as too low-risk to treat routinely — though the open-label design and small number of events call for caution.

King's College London researchers found urolithin A, made by gut bacteria after eating pomegranates and walnuts, improved heart relaxation by up to 80% in models of heart failure with preserved ejection fraction.

Federal health officials urged consumers to discard Sierra Nevada Graziers raw milk cheeses after three children developed a severe kidney complication linked to the recalled products.

A 27-year analysis of the Cincinnati region found first-time strokes among 20-to-54-year-olds climbing sharply, driven mostly by clot-related strokes even as short-term survival improved.

An analysis of nearly 96,000 wrist-accelerometer users found more time in dream sleep was tied to a lower risk of 83 conditions, from dementia to heart failure.

A divided advisory vote endorses Galleri screening for adults 50 and older, even though its lead study didn't show fewer late-stage diagnoses or a mortality benefit.

With outbreaks in 47 jurisdictions and vaccination rates sliding, health researchers say the country is on track to lose the measles elimination status it has held since 2000.

A 20-year analysis of more than 113,000 Ontario patients found that transient ischemic attacks raise long-term dementia risk by about a third, with the danger persisting well beyond the initial event.

Four measles deaths in Pennsylvania's Amish country have triggered a nurse-led vaccination push — and a political fight over the federal health secretary's role.

A nine-year tracking study of nearly 95,000 adults found that people who got more REM sleep faced lower odds of dozens of conditions, from heart failure to dementia and Parkinson's.

ARPA-H's new SPECTRA initiative aims to move autism research beyond childhood behavioral screening toward tools that follow individuals from early diagnosis into adulthood.

The GRAIL-funded PATHFINDER 2 trial found its Galleri blood test caught early-stage cancers often missed by routine screening, but researchers caution it is a complement, not a replacement, for standard checkups.

PET scans of 24 patients tie apathy, slowed movement and memory trouble to measurable damage in dopamine-producing brain circuits.

Researchers found cardiovascular risk climbs steadily the longer patients stay off GLP-1 drugs, reaching 22 percent higher within two years of quitting.

An analysis of more than 333,000 U.S. veterans with type 2 diabetes found cardiovascular risk climbed the longer patients went without semaglutide-class medications after starting them.

A systematic review of nearly 154,000 older adults across 69 trials found little to no benefit from routine calcium or vitamin D supplementation, prompting calls to revisit guidelines.

A Swedish registry study of more than 7,000 patients found modestly slower memory decline among those on newer anticoagulants than on warfarin — but the observational design leaves the cause unproven.

More than 650 infections have been confirmed in Italy this year, about half of all cases in Europe, as researchers link longer, hotter mosquito seasons to the virus's expanding reach.

Children as young as 4 with activated PI3K-delta syndrome can now access leniolisib, though the pediatric approval rests heavily on a small dosing study of just eight patients rather than a new efficacy trial.

Clinics across the U.S. are offering low-intensity shockwave therapy, borrowed from kidney-stone treatment, for erectile dysfunction — though the FDA hasn't approved it and major urology groups say the evidence remains thin.

Curium's Bexlutry becomes the first approved alternative to Lutathera for somatostatin receptor-positive neuroendocrine tumors, a move the company says will bolster supply of the specialized cancer treatment.

In a small trial, healthy men who sniffed dark chocolate before and during a fasted leg workout squeezed out roughly 18 more repetitions than those who smelled water — without feeling any more exhausted.

A meta-analysis pooling 87 clinical trials found measurable improvements in weight, blood pressure, cholesterol and inflammation at moderate whole-grain intake, though researchers caution the trials were short and don't prove fewer heart attacks.

An analysis of UK medical records found semaglutide users had nearly 40 percent fewer asthma attacks and a fifth fewer COPD flare-ups than those on an older diabetes drug — but researchers stress the findings are observational, not from a randomized trial.

A review of 1.9 million people found gastrointestinal symptoms nearly 50 percent more common among those with ADHD, though researchers stress the data show an association, not proof that one condition causes the other.

A 24-hour skin patch caught nighttime bursts of a blood-pressure hormone that routine blood tests miss, offering a possible new way to diagnose primary aldosteronism.

An unvaccinated 40-year-old woman with underlying lung disease died in Jefferson County as the state's case count topped 690 and the national tally reached its highest level since 1991.

A 13-year study of nearly 7,000 seniors found high waist circumference raised mortality risk by 24 percent, even as higher BMI was linked to a survival edge researchers call a statistical paradox, not proof that extra weight helps.

A world-first study out of the University of Sydney found living human heart tissue producing new muscle cells after a heart attack, a discovery researchers hope could eventually lead to therapies for heart failure.

Federal officials closed out the largest cyclospora outbreak on record, linked to Taylor Farms de Mexico iceberg lettuce, even as the source of the contamination remains unconfirmed.

Meena Geltink and Minal Tijssen bonded as Mumbai-born teenagers in the Netherlands and joked about being 'sisters' for years — then a DNA test proved it.

A study of nearly 74,000 men found tadalafil users had a 22% higher glaucoma risk than non-users, prompting calls for baseline eye exams rather than a change in prescribing.

Cedars-Sinai researchers say a checkpoint protein called PD-L2 helps damaged cells evade immune clearance, offering a new target for anti-aging therapies still confined to mice.

A Danish study found smaller ovaries and wombs in infant girls exposed to the painkiller before birth, but outside statisticians say the evidence is too weak to change medical guidance.

An analysis of more than 80,000 patient records found semaglutide was linked to roughly 40 percent fewer asthma attacks and 20 percent fewer COPD exacerbations than other diabetes treatments, but researchers say the observational data are not yet grounds to prescribe the drug for lung disease.

CDC data show infections growing or likely growing in 47 states, with Texas reporting the highest wastewater levels, as the country's now-familiar twice-yearly surge pattern repeats.

The largest primary-prevention statin trial in older adults found a 30 percent drop in major cardiovascular events — but no gain in disability-free years.

Nearly four months after the World Health Organization declared a global emergency, the Bundibugyo virus outbreak in eastern Congo continues to spread, with almost half of confirmed patients dying.

A study of aging's most extreme survivors found a rare immune cell that multiplies dramatically the older people get — and may help explain their resistance to disease.

A detailed cell-by-cell map of breast tumors found that dormant cancer cells cluster in neighborhoods ringed by protective immune and connective-tissue cells — a possible explanation for why cancer can return years after treatment ends.

In mice, liver cells injected alongside tiny hydrogel spheres formed working tissue that survived for two months and produced many of the proteins a healthy liver makes — an early step toward supplementing, not replacing, a failing organ.

Aged mice fed high doses of a lipid abundant in the ocean-dwelling filter feeders regrew darker fur, sharpened memory and calmed inflamed brain cells — though scientists caution the leap to humans remains untested.

First joint ESC-European Renal Association guidelines call for blood and urine testing at diagnosis, reflecting new evidence that heart and kidney disease accelerate each other.

A phase 3 trial found the once-nightly drug AD109 cut breathing interruptions by 44 percent, though it is not yet FDA-approved and roughly a fifth of participants stopped taking it due to side effects.

Camizestrant is the first cancer drug the FDA has approved based on a resistance mutation caught in the bloodstream before imaging shows a tumor has progressed.

The Ig Nobel Prize's medicine award went posthumously to a Japanese otolaryngologist whose 1977 study settled, with aerodynamic rigor, the correct way to blow one's nose.

Zanvastro, an antisense drug from Ionis Pharmaceuticals, stabilized walking speed in a pivotal trial for the ultra-rare, fatal neurological disorder that has never before had a targeted therapy.

A peer-reviewed Science study from MD Anderson found psilocybin prevented chemotherapy-induced nerve injury in preclinical models without blunting the drugs' tumor-killing effect — a mouse-model finding now moving into a Phase 2 human trial.

The LifeAfter90 cohort study of more than 800 people found women and Black participants faced markedly higher dementia risk even after reaching 90 — an observational finding researchers say reflects both genetics and lifelong health disparities.

The STAREE trial found daily atorvastatin reduced cardiovascular events in older adults without prior heart disease — but it didn't extend disability-free years, complicating how doctors should use the results.

In animal models and human spinal cord tissue, researchers found that the cancer protein BRAF migrates to the spinal cord after nerve injury and amplifies pain signals, and that cancer drugs already on the market blocked the effect.

Men already genetically prone to male-pattern baldness face a 7% added risk of hair loss when using drugs like Ozempic, Wegovy and Zepbound, according to a new genetic analysis that is the first to move beyond anecdotal reports.

A five-month trial that controlled participants' meals found a keto diet cut liver fat and reversed prediabetes more often than a Mediterranean or low-fat plant-forward diet, despite similar weight loss across all three groups.

A randomized crossover trial near a Massachusetts highway found faster executive-function test times after a month of real HEPA filtration versus a sham device — with limitations the authors are candid about.

A five-year analysis of more than 130,000 insomnia patients found nearly double the heart failure rate among long-term melatonin users, though researchers stress the finding is preliminary and not proof of cause.

A mouse study found that sucralose and stevia altered gut bacteria and gene activity in ways that echoed into a second generation that never tasted either sweetener.

A 60-person randomized, placebo-controlled study run inside Britain's public health system found large reductions in depressive symptoms after one supervised psilocybin session, though researchers caution larger trials are still needed.