Human Biology News

September 13, 2026

Top Headlines

Scientists Find a New Layer of Alzheimer’s Hidden in the Genome

Sep. 13, 2026 Scientists found that the 3D organization of DNA is disrupted in several types of brain cells affected by Alzheimer’s disease, altering how important genes are switched on and off. The discovery reveals a previously underexplored layer of the ...

AI Uncovers Hidden Ozempic Side Effects Across 400,000 Reddit Posts

Sep. 13, 2026 AI analysis of 400,000 Reddit posts found that users of drugs such as Ozempic, Wegovy, Mounjaro, and Zepbound reported unexpected symptoms including menstrual changes, chills, hot flashes, and fatigue. Researchers cannot say the medications caused ...

A Hidden Compound in Healthy Foods May Worsen IBD

Sep. 12, 2026 A natural compound found in foods such as spinach, almonds, and sweet potatoes may aggravate gut inflammation in people with Crohn’s disease and ulcerative colitis because their intestines appear to handle it differently. Researchers say the ...

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 be caused only by rapid weight loss and could ...

Scientists Discover a Hidden Switch That Shuts Down Inflammation

Sep. 12, 2026 Scientists have uncovered a natural braking system that helps the immune system switch off inflammation and prevent harmful immune cells from building up. Boosting this pathway in people reduced inflammation-related immune changes and sped up pain ...

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 intermediate risk, the scans could make a meaningful ...

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 restriction, raising the possibility that GLP-1 ...

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 genetic tricks could eventually reveal new ways ...

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 ...

Eating Only 8 Hours a Day May Help Control Type 1 Diabetes

Sep. 10, 2026 Eating only between noon and 8 p.m. improved blood sugar control in a small study of adults with Type 1 diabetes and obesity, while avoiding an increase in serious complications. The promising findings offer the first evidence that time restricted ...

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 and extended survival while avoiding a dangerous ...

DNA Treatment Cuts Bad Cholesterol by Nearly 50% Without Statins

Sep. 9, 2026 Researchers have designed a new DNA-based treatment that targets PCSK9, a protein closely tied to high LDL cholesterol and atherosclerosis. Their most effective molecule reduced PCSK9 protein by 87% in human liver cells and lowered cholesterol by ...

Latest Headlines

updated 10:31am EDT

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 ...

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 Discover a Hidden Immune Signal That Helps Spinal Cords Regrow

Sep. 7, 2026 A surprising immune system signal may help explain why zebrafish can regenerate damaged spinal cords so effectively. Researchers found that certain neutrophils release Il-4, which calms harmful ...

Scientists Discover a Hidden Problem With This Popular Sugar Substitute

Sep. 6, 2026 Sorbitol, a sugar alcohol commonly used in sugar-free candy, gum, and other low-calorie foods, may not be as harmless as it seems. Researchers at Washington University in St. Louis found that 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 ...

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, ...

New Injectable Treatment Helps the Brain Rebuild After Stroke

Sep. 3, 2026 Duke researchers developed an injectable scaffold that helped stroke-damaged brains grow new blood vessels, support nerve regrowth, and recover movement in mice. The treatment appears to work partly ...

One Immune Switch May Help Drive Aging Across the Body

Sep. 3, 2026 Aging may be partly fueled by immune cells losing their ability to clear away damaged, inflammation-promoting cells. Blocking a single receptor restored that cleanup process in mice, reducing ...

Your Neighborhood in Your 20s May Shape Your Heart Decades Later

Sep. 1, 2026 Where you live in early adulthood may quietly shape your heart health for decades. Researchers found that adverse neighborhood conditions were linked to a higher risk of coronary artery calcification ...

Obesity Leaves a Lasting Memory in Immune Cells

Sep. 1, 2026 Obesity appears to leave a molecular imprint on key immune cells that may persist for 5 to 10 years after weight loss. This long-lasting “obesity memory” could help explain why some ...

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 ...

A Hidden “on Switch” in Human DNA Has Finally Been Decoded

Aug. 23, 2026 Researchers have used AI to uncover the DNA signature of a key genetic “switch” involved in turning genes on. After analyzing about 500,000 DNA sequences, the model identified the initiator in ...

AI May Know How You’ll Respond to a Vaccine Before You Get It

Aug. 21, 2026 AI may be able to predict how strongly someone will respond to a vaccine before they receive it. By analyzing antibody patterns in more than 4,000 people, researchers found signs of “immune ...

People Who Live Past 110 Have an Unusual Abundance of Killer Immune Cells

Aug. 25, 2026 People who reach 110 and beyond appear to have unusually large numbers of rare immune cells capable of killing abnormal cells. These CD4 cytotoxic T cells became more common with age and often ...

Gut Bacteria May Unlock a Hidden Benefit of Vegetables

Aug. 23, 2026 Gut bacteria can transform nitrate and plant-based iron from vegetables and other foods into protective molecules that may benefit the heart and metabolism. In experimental models, higher levels of ...

3 Minutes of Sprinting Does Something 90 Minutes of Exercise Does Not

Aug. 21, 2026 A few minutes of sprinting may reshape the bloodstream far more dramatically than a much longer moderate workout. Six 30-second sprints altered nearly a quarter of the blood proteins measured and ...

A Surprising Brain Discovery Could Help Explain Why We Overeat Fatty Foods

Aug. 13, 2026 A protein inside appetite-controlling brain cells may play an important role in preventing overeating and obesity, particularly when high-fat foods are readily available. Unexpected differences ...

Taking the Stairs Could Protect Your Heart and Help You Live Longer

Aug. 14, 2026 Simply choosing the stairs could have surprisingly big benefits for your heart and longevity. A large analysis involving more than 480,000 people found that regular stair climbers were 39% less ...

Ozempic Does Something Unexpected to the Brain’s Hunger Neurons

Aug. 20, 2026 Ozempic may work in the brain in almost the opposite way scientists expected, activating hunger-linked neurons that appear essential for sustaining fat loss. The surprising discovery in mice could ...

This Weight-Loss Hormone May Protect the Liver Even Without Weight Loss

Aug. 21, 2026 A hormone already known for curbing appetite and supporting weight loss may have a surprising second job: protecting the liver from inflammation and scarring. Researchers at McMaster University found ...

A Surprising Triple Treatment Completely Clears Hiv in Newborn Primates

Aug. 13, 2026 Researchers have found a striking new way to potentially eliminate HIV soon after infection using a one-time combination of three therapies. In newborn nonhuman primates treated within three days of ...

High Blood Sugar May Help Cancer Cells Hide from the Immune System

Aug. 31, 2026 Researchers discovered a possible way cancer cells hide from the immune system: they build a thick, sugar-rich coating around themselves. High blood sugar can strengthen this protective shield under ...

Low-Fat Vegan Diet Helps People Lose Weight Without Eating Less

Aug. 17, 2026 A low-fat vegan diet may help people lose weight without counting calories, shrinking portions, or feeling constantly hungry. In a 16-week clinical trial, people eating mostly fruits, vegetables, ...

Immune Cells Flood Into the Aging Brain, Stanford Scientists Discover

Aug. 14, 2026 Scientists have discovered that the aging human brain may be far less isolated from the rest of the body than once believed. Stanford researchers found that large numbers of immune cells from the ...

A Little Movement in Midlife Could Pay Off for Your Brain Years Later

Aug. 16, 2026 Exercise and healthy blood sugar levels in midlife may help slow cognitive decline decades later. Physical activity appeared especially beneficial for Mexican American adults, suggesting that some ...

This Common Vitamin Deficiency Becomes Far More Dangerous When Paired With Belly Fat

Aug. 13, 2026 A large study of more than 5,500 adults over 50 found a striking combination of risk factors: abdominal obesity paired with vitamin D deficiency was linked to a 123% higher risk of death over six ...

A Simple Supplement Could Help the Immune System Fight Cancer and Viruses

Aug. 3, 2026 Low arginine levels may allow cancer cells and viruses to slip past the immune system by reducing production of a crucial cellular warning protein. In mice, arginine-rich diets led to fewer colon ...

Without This Protein, Damaged Muscle Turns to Fat and Scar Tissue

Aug. 2, 2026 A protein once thought to mainly protect chromosome ends may also be essential for keeping muscle stem cells ready to repair injuries. Researchers found that TRF2 helps these cells maintain their ...

Eating Less Protein Could Slow Aging, Major Review Finds

Aug. 2, 2026 A sweeping review of more than 350 studies suggests that the protein boom may be overselling what many people actually need. Eating less protein appears to improve metabolism, reduce inflammation and ...

When Gut Microbes Run Low on Fiber, They May Start Eating You

Aug. 15, 2026 Gut microbes need something to eat, and when fiber is limited, they may begin consuming proteins from the mucus lining that protects the gut. Researchers found that fiber can suppress this process, ...