Health & Medicine News

September 26, 2026

Top Headlines

A Major Risk of Breast Cancer Screening May Have Been Overestimated for Decades

Sep. 26, 2026 A new analysis suggests mammograms may lead to far less breast cancer overdiagnosis than some earlier studies indicated. Researchers reexamined all eight major randomized screening trials and ...

That Fresh Cleaning Smell Could Be Filling Your Home with Nanoparticles

Sep. 26, 2026 Researchers found that scented cleaners can react with ozone indoors to create billions or trillions of invisible nanoparticles that can penetrate deep into the lungs. The pollution forms within minutes and, in some cases, may produce an inhaled ...

Zepbound and Mounjaro May Turn on the Body’s Calorie-burning Brown Fat

Sep. 26, 2026 Tirzepatide, sold as Mounjaro and Zepbound, activated calorie-burning brown fat in obese mice, revealing a potential metabolic effect beyond appetite suppression. If confirmed in humans, the finding could help explain the drug’s powerful benefits ...

Don’t Toss Cannabis Leaves: They May Contain Rare Compounds with Medical Potential

Sep. 25, 2026 Scientists discovered rare flavoalkaloids in Cannabis leaves for the first time, along with dozens of other phenolic compounds that had never been reported in the plant. The findings suggest that ...

This “Rare” Autism-linked Genetic Disorder May Be Far More Common Than Scientists Thought

Sep. 25, 2026 A major analysis suggests Phelan-McDermid syndrome, a genetic disorder closely linked to autism, may affect about 1 in 7,300 people and more than 45,000 Americans. Researchers warn that thousands of ...

CRISPR Could Help Doctors Attack Blood Cancer Without Destroying Healthy Cells

Sep. 25, 2026 Researchers used CRISPR to remove CD33 from donor stem cells, potentially giving doctors a way to attack aggressive blood cancers without destroying the healthy cells patients need after a ...

Scientists Gave Worms Magnetic Bacteria. They Lived 43% Longer

Sep. 24, 2026 A magnet-producing bacterium extended the average lifespan of C. elegans worms by more than 43% while helping protect their neurological and intestinal health. Researchers traced much of the effect to suppression of ferroptosis, a damaging form of ...

Scientists Discover an “Impossible” Cellular Survival Pathway That Could Help Fight Cancer

Sep. 24, 2026 Scientists discovered a surprising backup system that lets mammalian cells make the essential amino acid cysteine even when the pathways once considered indispensable are disabled. The same survival ...

Scientists Thought They Knew How This 70-year-old Leukemia Drug Worked

Sep. 24, 2026 A 70-year-old leukemia drug is still revealing new secrets. Researchers found that removing a protein called NUDT5 protected cells from the drug, even though simply blocking the protein had little effect. The unexpected result points to a hidden ...

Aging Muscles May Be Losing Strength for a Reason Scientists Missed

Sep. 24, 2026 A newly identified breakdown in communication between nerves and muscles could help explain why people lose strength as they age. Researchers were able to improve muscle strength in an animal model by targeting a key protein, raising hopes that some ...

More REM Sleep Linked to Lower Risk of 83 Diseases

Sep. 23, 2026 A large study tracking more than 95,000 people suggests that how you sleep may be linked to your risk of developing dozens of diseases. People who spent more time in REM sleep had lower risks of 83 conditions, including dementia, heart failure, and ...

GLP-1 Weight Loss and Diabetes Drugs Linked to Nutritional Deficiencies in Nearly 1 in 6 Children

Sep. 23, 2026 Children taking GLP-1 medications (such as Victoza, Saxenda, Trulicity, and Ozempic) for weight loss, prediabetes, or type 2 diabetes may face an overlooked risk: nutritional deficiencies. A new ...

Latest Headlines

updated 11:27am EDT

Rare Pregnancy Infections May Triple the Risk of Autism

Sep. 23, 2026 A major Swedish study of 3.7 million people has found that rare TORCH infections passed from a pregnant woman to the fetus are linked to much higher risks of autism and intellectual disability later ...

Breakthrough Drug Reverses Skin Aging and Dramatically Speeds Healing

Sep. 23, 2026 A topical drug that removes aging, damaged cells helped older mice heal skin wounds significantly faster. The treatment appeared to reactivate repair pathways involved in inflammation, collagen ...

This New Drug Could Break Cancer’s Resistance to Treatment

Sep. 22, 2026 A new experimental drug called CS18 may help break through cancer drug resistance by disabling several of the defenses tumors use to survive treatment. It strengthened existing therapies, restored ...

Coffee Doesn’t Have to Keep You Awake to Disrupt Your Sleep

Sep. 22, 2026 Caffeine may make sleep less restorative even when you fall asleep normally and stay in bed for eight hours, with EEG recordings revealing fewer of the slow brain waves associated with deep sleep. ...

This Emerging Treatment Could Help People Avoid Knee Replacement Surgery

Sep. 22, 2026 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 ...

Brain Scans Reveal a Possible Cause of Long COVID Fatigue and Brain Fog

Sep. 21, 2026 Researchers have found evidence that long COVID may damage dopamine releasing neurons in the brain, potentially explaining persistent fatigue, low motivation, slowed movement, and memory ...

Stem Cells Reverse Stroke Damage and Restore Movement in Mice

Sep. 21, 2026 Stem cell transplants helped regenerate stroke-damaged brain tissue in mice, producing new neurons and restoring lost motor function. The treatment also improved blood vessels, inflammation, and the ...

Stopping Ozempic May Raise Heart Attack and Stroke Risk

Sep. 21, 2026 A large study suggests the cardiovascular benefits of GLP-1 drugs such as Ozempic, Wegovy, Mounjaro, and Zepbound can disappear surprisingly quickly when treatment stops. After two years off the ...

Scientists Create a Needle-Thin Brain Implant That Can Do Three Jobs at Once

Sep. 21, 2026 A new needle-thin brain implant can record neural activity, deliver drugs, and stimulate multiple brain regions using a single flexible fiber. ...

Chronic Stress May Be Quietly Reshaping Your Heart

Sep. 21, 2026 Chronic inflammation tied to stress, lifestyle, mental health, and socioeconomic conditions may silently change the heart for years before any symptoms appear. People with the highest inflammation ...

Stanford Scientists Discover the Human Brain May Actually Be Two Separate Organs

Sep. 21, 2026 Scientists have found that the human brain develops from two distinct cellular systems, suggesting that evolution fused together two ancient nervous systems with very different jobs. The discovery ...

Ancient DNA Reveals How Plague Kept Returning for 400 Years After the Black Death

Sep. 20, 2026 Ancient DNA reveals that plague repeatedly returned to Europe for more than 400 years after the Black Death, evolving into new lineages and spreading through trade, migration, and war. Researchers ...

Scientists Find the Whole Grain “sweet Spot” for Better Heart Health

Sep. 16, 2026 Eating four to six servings of whole grains a day may deliver meaningful benefits for heart health, according to a large review of 87 clinical trials. Researchers found improvements in body weight, ...

Your Next Prescription Could Be Treating a Side Effect from the Last One

Sep. 11, 2026 A major Ontario study found 24 common medication chains in which one drug’s side effects can be mistaken for a new medical problem, leading to another prescription. Researchers say closer ...

Study of 1.9 Million People Finds a Striking Link Between ADHD and Gut Problems

Sep. 11, 2026 Researchers analyzing data from more than 1.9 million people found that ADHD is associated with substantially higher rates of digestive problems. People with ADHD had nearly double the odds of ...

Too Much Light at Night May Quietly Reshape Your Heart

Sep. 11, 2026 Nighttime light exposure was linked to thicker, stiffer heart chambers and early signs of reduced heart function in a study of more than 11,000 people. The findings suggest that keeping bedrooms ...

UCLA Scientists Turn Cord Blood Into Powerful Cancer-Fighting T Cells

Sep. 10, 2026 UCLA researchers developed ready-made cancer-fighting T cells from cord blood stem cells that can attack solid tumors through two separate detection systems. In mice, a single dose controlled cancer ...

Ozempic and Wegovy Linked to Nearly 40% Fewer Asthma Attacks

Sep. 9, 2026 Semaglutide, the drug found in Ozempic and Wegovy, was linked to nearly 40% fewer asthma attacks in a large real-world study. It was also associated with about 20% fewer COPD flare-ups. Researchers ...

Ozempic and Wegovy May Raise Hair Loss Risk in Some Men

Sep. 12, 2026 GLP-1 drugs such as Ozempic, Wegovy, and Zepbound may increase hair-loss risk by 7% in men who are already genetically susceptible to male-pattern baldness. The findings suggest thinning hair may not ...

Scientists Reveal the Hidden Instructions That Build the Human Brain

Sep. 4, 2026 UCLA researchers have discovered two powerful influences that help guide how the human brain forms before birth. Radial glia, stem cells responsible for producing much of the cerebral cortex, change ...

Scientists Find Ozempic May Slow Aging Itself

Sep. 12, 2026 Semaglutide helped older healthy mice live longer while improving memory, muscle function, blood sugar control, and several biological signs of aging. Its effects went beyond those seen with calorie ...

Your Personality May Be More Genetic Than Scientists Realized

Sep. 8, 2026 More than 1,200 genetic variants have been linked to the Big Five personality traits, and many of the same variants are also associated with health, longevity, careers, income, and everyday habits. ...

Scientists Observe Einstein’s Gravity in the Quantum World for the First Time

Sep. 8, 2026 Physicists have directly observed a long-predicted quantum effect of gravity, putting one of Einstein’s foundational ideas to a striking new test. Using ultracold atoms, researchers split an ...

Compound in Blueberries May Help Muscle Cells Burn Excess Fat

Sep. 5, 2026 Scientists in Japan have identified a natural compound found in blueberries, grapes, and other berries that may help muscle cells burn excess fat instead of storing it. The compound, pterostilbene, ...

“Broken Heart Syndrome” Can Look Just Like a Heart Attack. This Test Can Tell Them Apart

Sep. 2, 2026 “Broken heart syndrome” can mimic a heart attack so closely that patients often need invasive testing to tell the difference. Researchers have now developed the BioTAK score, which combines ...

Early Statin Use Linked to 15% Lower Dementia Risk

Sep. 8, 2026 Starting statins soon after a type 2 diabetes diagnosis may do more than protect the heart. In a nationwide Danish study of more than 132,000 people, those who began statin treatment within a year of ...

Heart Disease and Kidney Disease Can Fuel Each Other. New Guidelines Aim to Break the Cycle

Sep. 5, 2026 Heart disease and chronic kidney disease can accelerate one another, but new guidelines say simple screening and early treatment could substantially reduce the risks. Blood and urine tests, combined ...

Hidden Gut Defect That May Explain Why IBD Keeps Coming Back

Sep. 19, 2026 Researchers have uncovered a hidden molecular warning sign of inflammatory bowel disease (IBD) that can linger even when patients feel well and appear to be in remission. By studying around 900 human ...

A Cancer Therapy Put Severe Rheumatoid Arthritis Into Remission

Aug. 29, 2026 CAR T-cell therapy dramatically reduced disease activity in six people with severe rheumatoid arthritis that had resisted other treatments, with three achieving medication-free remission. The ...

Keto Diet Cut Liver Fat by 67% in a Clinical Trial

Aug. 29, 2026 A ketogenic diet outperformed Mediterranean and low-fat diets in several measures of metabolic health during a clinical trial involving people with obesity, prediabetes, and fatty liver disease. All ...