Top Health News

September 29, 2026

Top Headlines

Scientists Just Discovered What Coffee Really Does to Your Gut and Brain

Sep. 28, 2026 A new study suggests coffee may influence mood and brain function by changing the activity of microbes in the gut. Both caffeinated and decaf coffee were linked to lower stress, depression, and impulsivity, while also producing measurable changes in ...

Blood Tests Reveal Why Astronauts Get Constipated in Space

Sep. 28, 2026 Spaceflight may dramatically change the gut within weeks, causing bacteria to break down more protein as food moves more slowly through the intestines. The shift could help explain astronaut constipation and may have wider effects on health, making ...

160-million-year-old Proteins Show Surprising Power Against Superbugs

Sep. 28, 2026 Scientists resurrected antimicrobial peptides from mammals that lived millions of years ago and found that some were more potent against drug-resistant bacteria than modern human versions. These evolutionary relics could provide new clues for ...

Resetting the Body Clock Could Help the Brain Recover After Stroke

Sep. 28, 2026 Strengthening the body’s natural daily rhythms helped mice recover after stroke by improving the brain’s waste-clearing system and reducing lingering inflammation. The approach worked even when treatment began three days after the stroke, ...

Scientists Found a Surprising Driver of Alzheimer’s Outside the Brain

Sep. 27, 2026 Scientists found that immune cells contributing to Alzheimer’s-related brain damage may be activated in lymph nodes outside the brain before traveling into the nervous system. Blocking this pathway in mice dramatically reduced neurodegeneration ...

Glucosamine, a Popular Joint Supplement, Linked to Faster Alzheimer’s Progression

Sep. 27, 2026 A large health-record analysis found that glucosamine use was associated with a 25% higher likelihood of mild cognitive impairment progressing to dementia. Lab experiments suggest the popular joint ...

One CRISPR Treatment Cut “Bad” Cholesterol in Half for a Full Year

Sep. 27, 2026 A single dose of an experimental CRISPR therapy cut LDL cholesterol and triglycerides by about half in patients with difficult-to-treat lipid disorders. The reductions were still present one year later, with the highest dose lowering LDL by 52.5% ...

Why Rheumatoid Arthritis Pain May Persist Even When Inflammation Is Under Control

Sep. 27, 2026 Pain and fatigue in rheumatoid arthritis can persist even after inflammation improves, with depression, poor sleep, obesity, smoking, and chronic pain potentially helping sustain symptoms. ...

Scientists Say House Cats Could Help Unlock Better Cancer Treatments for Humans

Sep. 26, 2026 Scientists have mapped the genetics of cat cancer on an unprecedented scale and found surprising similarities with tumors in humans. The findings could help bring precision cancer treatments to cats ...

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 ...

Latest Headlines

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Hidden Stem Cells May Be Fueling Spinal Stenosis

Sep. 28, 2026 Scientists have discovered a stem cell that appears to serve as a master source for tendon and ligament cells throughout the body. In lumbar spinal stenosis, these cells become unusually active and ...

Scientists Find New Virus Behind Mysterious Tick Illness

Sep. 28, 2026 Scientists have discovered a new tick-borne virus in China that causes flu-like illness and may account for previously unexplained cases of fever, fatigue, digestive problems, and low platelet ...

Diabetes Study Finds Keeping Blood Sugar Too Steady May Come at a Price

Sep. 28, 2026 People with diabetes reported better quality of life after days when their glucose stayed largely within a healthy range, even when levels fluctuated more than usual. The unexpected finding suggests ...

Pomegranate Compound Improves Heart Function by Up to 80% in Study

Sep. 28, 2026 A compound the body can make after eating pomegranates, walnuts, and some berries improved measures of heart function by up to 80% in animal models of a difficult-to-treat form of heart failure. ...

Atrial Fibrillation Patients Saw 69% Lower Risk With Common Blood Thinners

Sep. 27, 2026 Direct oral anticoagulants cut the risk of serious clinical events by 69% in atrial fibrillation patients with an intermediate risk of stroke, according to the randomized SINGLE-AF trial. The benefit ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

When What You See Doesn’t Make Sense, Your Brain Does Something Remarkable

Sep. 24, 2026 The brain may have a built-in way to quickly settle disagreements between regions processing the same scene. Researchers found that matching signals between two visual areas lasted longer, while ...

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 ...

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 ...

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 ...

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 ...

Scientists Find That “perfect” Systems May Be Surprisingly Fragile

Sep. 19, 2026 Complex systems may work better when their parts are not perfectly alike. Northwestern physicists found that carefully balanced variation, or “disorder,” can make networks such as power grids, ...

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 ...