Human Biology News

November 20, 2025

Top Headlines

Scientists Reawaken Exhausted T Cells to Supercharge Cancer Immunity

Nov. 20, 2025 Researchers discovered a way to keep T cells from wearing out during the fight against cancer, and the approach could make immune-based treatments far more powerful. They found that tumors use a particular molecular signal to weaken T cells, and ...

Inflammation Turns Bone Marrow Into a Breeding Ground for Disease

Nov. 19, 2025 Researchers discovered that chronic inflammation fundamentally remodels the bone marrow, allowing mutated stem cell clones to quietly gain dominance with age. Reprogrammed stromal cells and interferon-responsive T cells create a self-sustaining ...

Everyday Microplastics Could Be Fueling Heart Disease

Nov. 18, 2025 Microplastics—tiny particles now found in food, water, air, and even human tissues—may directly accelerate artery-clogging disease, and new research shows the danger may be far greater for males. In mice, environmentally realistic doses of ...

Scientists Discover Metformin May Block Key Exercise Benefits

Nov. 18, 2025 Rutgers scientists found that metformin can blunt many of the metabolic and cardiovascular improvements normally produced by exercise. Participants who took the drug saw reduced gains in fitness, blood vessel function, and glucose control. The ...

Amazon Scorpion Venom Shows Stunning Power Against Breast Cancer

Nov. 18, 2025 Scientists are turning venom, radioisotopes, engineered proteins, and AI into powerful new tools against cancer. From Amazonian scorpions yielding molecules that kill breast cancer cells as effectively as chemotherapy, to improved fibrin sealants ...

A Tiny Worm Just Revealed a Big Secret About Living Longer

Nov. 14, 2025 Scientists studying aging found that sensory inputs like touch and smell can cancel out the lifespan-boosting effects of dietary restriction by suppressing the key longevity gene fmo-2. When overactivated, the gene makes worms oddly indifferent to ...

Scientists Uncover a Hidden Limit Inside Human Endurance

Nov. 13, 2025 Ultra-endurance athletes can push their bodies to extraordinary extremes, but even they run into a hard biological wall. Researchers tracked ultra-runners, cyclists, and triathletes over weeks and months, discovering that no matter how intense the ...

Smart Drug Strikes a Hidden RNA Weak Point in Cancer Cells

Nov. 13, 2025 Researchers have designed a smart drug that hunts down and breaks a little-known RNA that cancer cells depend on. The drug recognizes a unique fold in the RNA and triggers the cell to destroy it. Tests showed that removing this RNA slows cancer ...

New Study Finds Ozempic and Mounjaro Protect the Heart Too

Nov. 12, 2025 New research from the Technical University of Munich and Harvard Medical School reveals that popular GLP-1-based drugs, semaglutide (Ozempic) and tirzepatide (Mounjaro), not only promote weight loss but also significantly reduce the risk of heart ...

A Simple DNA Test Could Reveal the Right Antidepressant for You

Nov. 9, 2025 Millions struggle with depression and anxiety, often enduring long waits for effective treatment. Scientists in Sweden, Denmark, and Germany are developing a genetic test to predict which medications will actually work. Using polygenic risk scores, ...

Scientists Find Brain Cells That Could Stop Alzheimer’s

Nov. 8, 2025 Researchers have identified special immune cells in the brain that help slow Alzheimer’s. These microglia work to reduce inflammation and block the spread of harmful proteins. They appear to protect memory and brain health, offering a promising ...

COVID Vaccine Linked to Fewer Infections and Allergies in Kids with Eczema

Nov. 8, 2025 New research suggests the COVID-19 vaccine could help children with eczema stay healthier overall. Vaccinated kids had lower rates of infections and allergies, including asthma and rhinitis, compared with unvaccinated peers. Experts believe the ...

Latest Headlines

updated 1:09pm EST

New DNA Test Predicts Dangerous Heart Rhythms Early

Nov. 17, 2025 Scientists at Northwestern Medicine have developed a new genetic risk score that predicts who is most likely to experience irregular or dangerous heart rhythms. The test merges several types of ...

Scientists Uncover a Surprising Protein That Heals Stubborn Wounds

Nov. 17, 2025 Researchers have uncovered that SerpinB3, typically linked to severe cancers, is also a key player in natural wound healing. The protein drives skin cell movement and tissue rebuilding, especially ...

GLP-1 Drugs Like Ozempic Deliver Huge Weight Loss but New Research Reveals a Hidden Catch

Nov. 16, 2025 GLP-1 drugs like tirzepatide and semaglutide offer powerful weight-loss effects but come with unanswered questions about long-term safety, side ...

New Discovery Could Help Stop Diabetes Damage at Its Source

Nov. 15, 2025 Scientists identified a small molecule that interrupts a harmful protein pair linked to diabetic inflammation and tissue damage. The compound helped wounds heal faster and reduced organ stress in ...

Scientists Reverse Kidney Damage in Mice, Hope for Humans Next

Nov. 14, 2025 Researchers uncovered how fatty molecules called ceramides trigger acute kidney injury by damaging the mitochondria that power kidney cells. By altering ceramide metabolism or using a new drug ...

Cheap Gout Drug May Slash Heart Attack and Stroke Risk

Nov. 12, 2025 Colchicine, a cheap and widely used gout drug, may help prevent heart attacks and strokes in people with cardiovascular disease. Trials involving nearly 23,000 patients show meaningful reductions in ...

Goodbye Cavities? This New Toothpaste Made from Hair Can Heal Enamel

Nov. 10, 2025 Scientists have found that keratin, the protein in hair and skin, can repair and protect tooth enamel. The material forms a mineralized layer that halts decay and restores strength, outperforming ...

A Hidden Cellular Cleanup Trick Could Reverse Aging

Nov. 7, 2025 Researchers found that the body’s natural recycling system, the lysosome, plays a vital role in removing the protein that drives premature aging. When this system breaks down, aging speeds up. By ...

The Hidden “Big Bang” That Decides How Bowel Cancer Grows

Nov. 7, 2025 Scientists have pinpointed a “Big Bang” moment in bowel cancer—when cells first evade the immune system. This early immune escape locks in how the cancer will behave as it grows. The discovery ...

Scientists Discover How Hair Cells Can Help Heal Skin Faster

Nov. 7, 2025 Rockefeller scientists uncovered how hair follicle stem cells can switch from growing hair to repairing skin when nutrients run low. The key lies in serine, an amino acid that activates a stress ...

A Shapeshifting Protein Explains Rabies’ Deadly Power

Nov. 5, 2025 Researchers discovered how rabies virus exerts massive control over host cells with very few genes. A key viral protein changes shape and binds RNA, allowing it to infiltrate different cellular ...

Scientists Find Hidden Brain Source That Fuels Dementia

Nov. 6, 2025 Weill Cornell researchers uncovered how free radicals from astrocyte mitochondria can fuel dementia. Using new compounds that target these radicals at their source, they slowed brain inflammation and ...

Scientists Discover the Nutrient That Supercharges Cellular Energy

Nov. 3, 2025 Scientists uncovered how the amino acid leucine enhances mitochondrial efficiency by preserving crucial proteins that drive energy production. By downregulating the protein SEL1L, leucine prevents ...

Ancient Viruses Hidden Inside Bacteria Could Help Defeat Modern Infections

Nov. 3, 2025 Penn State scientists uncovered an ancient bacterial defense where dormant viral DNA helps bacteria fight new viral threats. The enzyme PinQ flips bacterial genes to create protective proteins that ...

A 25-Year Crohn’s Disease Mystery Finally Cracked by AI

Nov. 3, 2025 UC San Diego researchers combined artificial intelligence with molecular biology to unravel how immune cells in the gut decide between inflammation and healing, a process gone awry in Crohn’s ...

Ozempic and Wegovy Protect the Heart, Even Without Weight Loss

Oct. 31, 2025 Semaglutide appears to safeguard the heart even when patients lose little weight. In a massive international trial, heart attack and stroke risk dropped by 20% regardless of BMI. The benefit seems ...

Scientists Discover COVID mRNA Vaccines Boost Cancer Survival

Oct. 28, 2025 Researchers found that COVID-19 mRNA vaccines significantly increased survival in lung and skin cancer patients undergoing immunotherapy. The vaccine appears to prime the immune system in a powerful, ...

Scientists Just Found a Surprising Link Between Gray Hair and Cancer

Oct. 25, 2025 Japanese researchers discovered that hair graying and melanoma share a surprising cellular origin. When DNA damage strikes melanocyte stem cells, they may undergo a protective process called ...

They Found Cancer’s Hidden Power Hubs and Learned How to Melt Them Away

Oct. 22, 2025 Texas A&M researchers found that in an aggressive kidney cancer, RNA builds “droplet hubs” that activate tumor genes. By creating a molecular switch to dissolve these hubs, they stopped ...

Scientists Detect Hidden Brain Damage Years Before MS Symptoms

Oct. 21, 2025 Scientists at UCSF have uncovered evidence that multiple sclerosis silently damages the brain years before diagnosis. By studying proteins in blood samples, they identified early immune signals and ...

Scientists Find Immune Drug That Could Halt Skin Cancer’s Deadly Spread

Oct. 20, 2025 Researchers found that pembrolizumab, an immune-activating cancer drug, lowered the risk of distant metastases in patients with Merkel cell carcinoma after surgery. Though recurrence rates overall ...

Cancer Patients Who Got a COVID Vaccine Lived Much Longer

Oct. 19, 2025 A groundbreaking study reveals that cancer patients who received a COVID-19 mRNA vaccine within 100 days of starting immunotherapy lived dramatically longer than those who didn’t. Researchers from ...

A Gene from 100-Year-Olds Could Help Kids Who Age Too Fast

Nov. 3, 2025 Scientists have discovered that a “longevity gene” found in people who live beyond 100 can reverse heart aging in models of Progeria, a devastating disease that causes children to age rapidly. By ...

Scientists Discover a Hidden Gene Mutation That Causes Deafness—and a Way to Fix It

Oct. 25, 2025 Scientists have identified mutations in the CPD gene as a key cause of a rare congenital hearing loss, revealing how disruptions in arginine and nitric oxide signaling damage sensory cells in the ...

Scientists Grow Mini Human Livers That Predict Toxic Drug Reactions

Oct. 15, 2025 A new human liver organoid microarray developed by Cincinnati Children’s and Roche recreates immune-driven liver injury in the lab. Built from patient-derived stem cells and immune cells, it ...

Your Skin Could Warn of Hidden Mental Health Trouble

Oct. 13, 2025 People experiencing their first psychotic episode who also have skin conditions such as rashes or itching are at greater risk of depression and suicidal thoughts, according to new research presented ...

Scientists Finally Read the Hidden DNA Code That Shapes Disease

Oct. 18, 2025 EMBL researchers created SDR-seq, a next-generation tool that decodes both DNA and RNA from the same cell. It finally opens access to non-coding regions, where most disease-associated genetic ...

A Revolutionary DNA Search Engine Is Speeding Up Genetic Discovery

Oct. 28, 2025 ETH Zurich scientists have created “MetaGraph,” a revolutionary DNA search engine that functions like Google for genetic data. By compressing global genomic datasets by a factor of 300, it allows ...

Scientists Launch $14.2 Million Project to Map the Body’s “hidden Sixth Sense”

Oct. 25, 2025 Inside your body, an intricate communication network constantly monitors breathing, heart rate, digestion, and immune function — a hidden “sixth sense” called interoception. Now, Nobel laureate ...

This Experimental “super Vaccine” Stopped Cancer Cold in the Lab

Oct. 13, 2025 UMass Amherst researchers have developed a groundbreaking nanoparticle-based cancer vaccine that prevented melanoma, pancreatic, and triple-negative breast cancers in mice—with up to 88% remaining ...