Human Biology News

October 13, 2026

Top Headlines

Scientists Discover a Surprising Paradox in How Our Cells Age

Oct. 13, 2026 Scientists have discovered that the body's cellular recycling system behaves very differently during aging than previously believed, with higher activity sometimes linked to worse physical health. A small study suggests that even gentle exercise ...

Scientists Just Gave the Powerhouses of Our Cells a High-tech Upgrade

Oct. 12, 2026 Scientists have created a new coating for mitochondria that preserves their ability to produce energy, potentially opening the door to new treatments for diseases involving these tiny cellular powerhouses. The technology could one day help transfer ...

After 30 Years, Scientists Finally Have a Drug for a Deadly Brain Disease

Oct. 12, 2026 The FDA has approved the first drug that directly targets Alexander disease, a devastating neurological disorder affecting fewer than one in a million people. Developed through decades of research, Zanvastro showed promising results in clinical ...

Your Gut Bacteria Could Be Changing How Many Calories You Absorb

Oct. 12, 2026 Scientists have developed a model showing that gut bacteria play a surprisingly important role in how many calories we absorb, meaning food labels may not tell the full story. In a controlled study, people eating a high-fiber diet absorbed about 116 ...

Oct. 12, 2026 Popular GLP-1 weight loss drugs, such as Ozempic and Wegovy, have been linked to unexpectedly high rates of nail detachment, hair loss, and scalp inflammation, with some problems occurring several times more frequently among users. Researchers found ...

Scientists Find Hidden Driver of Aging and a Simple Amino Acid That Fights Memory Loss in Mice

Oct. 12, 2026 Scientists discovered that declining levels of a protein called Menin may help drive aging, and restoring it in older mice reversed several age-related changes in just 30 days. Even more ...

Eating Olive Oil Before Carbs Has a Surprising Effect on Blood Sugar

Oct. 11, 2026 A simple change in the order you eat your food could help prevent blood sugar spikes. Scientists discovered that giving mice olive oil before carbohydrates slowed digestion and activated a surprising combination of hormones and nerve signals that ...

Scientists May Have Found Why Diabetic Wounds Refuse to Heal

Oct. 9, 2026 Chronic diabetic wounds may fail to heal because immune cells remain locked in damaging inflammatory states instead of transitioning toward tissue repair. Researchers are exploring treatments that reprogram these immune responses, raising hopes for ...

Only One Workout Helped Older Adults Lose Fat and Keep Muscle

Oct. 9, 2026 A six-month study suggests that high-intensity interval training (HIIT) may offer older adults a powerful advantage: losing body fat while keeping their muscle. Unlike moderate-intensity workouts, which led to a small loss of lean muscle, HIIT ...

Bacteria Turn a Virus’ Own Weapon Against It

Oct. 9, 2026 Researchers have uncovered a new way bacteria detect viral attacks: a virus-produced enzyme cuts a bacterial sensor protein, triggering a self-destructing immune response. The discovery could lead to more effective phage therapies against ...

Scientists Warn a Popular Vitamin D Supplement May Have a Hidden Downside

Oct. 8, 2026 Not all vitamin D supplements are created equal, and new research suggests that one popular form may have an unexpected downside. Scientists found that taking vitamin D2 can actually lower the body's levels of vitamin D3, the form naturally produced ...

Stanford Scientists Turn a Cancer Driver Into a Kill Switch

Oct. 7, 2026 A Stanford-designed molecule turns a major lymphoma-promoting protein against cancer cells, activating their own self-destruct machinery instead of simply blocking tumor growth. In mice, the treatment completely eliminated aggressive human lymphoma ...

Latest Headlines

updated 8:01am EDT

Scientists Reprogram Immune Cells Inside the Body to Fight Cancer

Oct. 7, 2026 Scientists at UC San Francisco have developed a way to create cancer-fighting CAR-T cells directly inside the body, potentially avoiding the slow and extremely expensive process of removing, ...

MIT Scientists Find a Hidden Cancer Risk of the Keto Diet

Oct. 5, 2026 A ketogenic diet increased small-intestinal tumors in cancer-prone mice while reducing tumors in the colon, revealing a strikingly different response within neighboring parts of the gut. Researchers ...

Scientists Reveal What Seven Days of Fasting Does to the Human Body

Oct. 5, 2026 Scientists found that prolonged fasting triggers major changes throughout the body, but many of the most interesting effects only appeared after about three days without food. The results suggest ...

Scientists Discover a Human Brain Gene That Can Jump Through DNA

Oct. 5, 2026 Scientists have discovered a human gene with a remarkable double life: it appears to play an important role in brain cells while still retaining the ability to jump around the genome. Called BC200, ...

Cancer-Fighting T Cells Burn Out. Scientists May Have Found a Fix

Oct. 5, 2026 Cancer immunotherapy can lose its punch when tumor-fighting T cells become exhausted, but researchers may have found a way to keep them going longer. Scientists at Memorial Sloan Kettering Cancer ...

The “glue” Holding Your Cells Together Has a Surprising Second Job

Oct. 4, 2026 Scientists have discovered that E-cadherin, a protein best known as the “glue” holding cells and tissues together, has a surprising second job: helping epithelial cells swallow nearby dead cells. ...

Easing Constipation: A 20-Minute Walk Can Get Your Gut Moving Almost Immediately

Oct. 4, 2026 Researchers found that just 20 minutes of comfortable walking can rapidly stimulate the gut. Within one to two minutes after exercise, bowel sounds ...

Leucine Does More Than Build Muscle. It Powers Up Your Cells

Oct. 3, 2026 The essential amino acid leucine can boost cellular energy production by protecting key proteins on mitochondria from being destroyed. The discovery reveals a new connection between nutrition and ...

Weak Sunlight Can Still Damage Your DNA, Scientists Warn

Oct. 1, 2026 Weak sunlight can still damage skin DNA if you spend enough time outdoors, according to a landmark Australian study. Even UV doses too low to cause visible redness triggered cellular damage that ...

Scientists May Have Found a “unifying Theory” of Chronic Fatigue

Oct. 1, 2026 Scientists found that five seemingly unrelated conditions, including long Covid, ME/CFS, and PTSD, may disrupt many of the same biological networks involved in immunity, metabolism, and cellular ...

Creatine May Help Build Muscle Even Without Exercise, Researchers Find

Sep. 29, 2026 Creatine helped middle-aged adults gain muscle and strength even without a structured workout program in a new 12-week study. When combined with exercise and a calorie-reduced diet, it produced even ...

Alzheimer’s Risk Gene APOE4 May Have a Reversible Weakness

Oct. 1, 2026 The Alzheimer’s risk gene APOE4 may actively damage brain blood vessels and sabotage the cellular systems that remove harmful proteins. Researchers were able to reverse some of these effects in ...

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 ...

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, ...

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 ...

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 ...

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 ...

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 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. ...

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, ...

1 in 13 Adults Under 30 Already Had Hidden Artery Plaque

Oct. 1, 2026 More than half of 16,000 apparently healthy adults had signs of atherosclerosis, with arterial plaques already detectable in about 1 in 13 people ages 18 to 29. Researchers say directly imaging the ...

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 ...

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 ...

Scientists Find a Hidden Cause of High Blood Pressure That Routine Tests Can Miss

Sep. 14, 2026 A wearable device has revealed nighttime hormone surges that may expose a frequently missed cause of high blood pressure. The discovery could help explain why primary aldosteronism often escapes ...

Who Really Needs a Heart Calcium Scan?

Sep. 12, 2026 A 10-year study of more than 6,000 adults found that popular coronary calcium scans may add little to standard heart disease risk estimates for many people. But for patients with borderline or ...

The Secret to Longer Life May Be Hidden in Bat DNA

Sep. 11, 2026 Long-lived bats appear to combine powerful immune defenses with unusual strategies for eliminating damaged cells, potentially helping them avoid cancer and disease for decades. Researchers hope these ...

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 ...