Health & Medicine News

November 13, 2025

Top Headlines

Your Anxiety May Be Controlled by Hidden Immune Cells in the Brain

Nov. 13, 2025 — Researchers have uncovered surprising evidence that anxiety may be controlled not by neurons but by two dueling groups of immune cells inside the brain. These microglia act like biological pedals—one pushing anxiety forward and the other holding ...

New Study Finds Hidden Diabetes Danger in Vaping

Nov. 13, 2025 — Smoking, vaping, or using both products significantly increases the likelihood of developing prediabetes and diabetes, and the risk is even higher among Hispanic, Black, and low-income groups. Researchers found that vaping alone raises prediabetes ...

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 ...

Strange Microscopic Structures Found in Long COVID Blood

Nov. 13, 2025 — Scientists have discovered strange microscopic structures in the blood of people with Long COVID—clusters of tiny microclots tangled together with sticky immune webs known as neutrophil extracellular traps, or NETs. These combined structures show ...

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 risk with low doses. Side effects were mostly mild ...

Hidden Household Toxin Triples Liver Disease Risk, Study Finds

Nov. 12, 2025 — Scientists have uncovered a new environmental culprit behind liver disease: tetrachloroethylene (PCE), a chemical used in dry cleaning and household products. The study found that people with PCE exposure were three times more likely to develop ...

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 ...

Scientists Find 15 Gut Bacteria That May Drive Heart Disease

Nov. 12, 2025 — Scientists in Seoul have uncovered 15 gut bacterial species linked to coronary artery disease, showing that microbes can influence heart health far beyond digestion. Their findings reveal how shifts in gut microbial function — including ...

Wegovy and Ozempic Tied to Dramatically Lower Cancer Deaths

Nov. 12, 2025 — GLP-1 drugs such as Ozempic and Wegovy may extend the lives of colon cancer patients, according to a major UC San Diego study. Patients on the medications had less than half the mortality rate of non-users. Researchers suspect the drugs’ ...

The Rarest Element on Earth Could Revolutionize Cancer Treatment

Nov. 11, 2025 — Texas A&M scientists have unlocked new potential for astatine-211, a rare and short-lived element, as a highly precise cancer-fighting isotope. Its alpha emissions destroy tumor cells while sparing healthy tissue, making it ideal for targeted ...

Tiny Implant Wipes Out Bladder Cancer in 82% of Patients

Nov. 11, 2025 — TAR-200, a small drug-releasing implant, wiped out tumors in most patients with high-risk bladder cancer. Its slow, consistent release of chemotherapy proved far more effective than traditional short-term treatments. The therapy may replace bladder ...

This 14th Century Story Fooled the World About the Black Death

Nov. 11, 2025 — Historians have traced myths about the Black Death’s rapid journey across Asia to one 14th-century poem by Ibn al-Wardi. His imaginative maqāma, never meant as fact, became the foundation for centuries of misinformation about how the plague ...

Latest Headlines

updated 9:38am EST

Scientists Turn Body Fat Into Bone to Heal Spinal Fractures

Nov. 11, 2025 — Researchers in Osaka have found that stem cells from fat tissue can repair spinal fractures similar to those caused by osteoporosis. By turning these cells into bone-forming clusters and pairing them ...

Running on Little Sleep? You’re Twice as Likely to Get Hurt

Nov. 11, 2025 — Researchers found that runners who sleep poorly face nearly double the injury risk compared to those who rest well. The study highlights that sleep is not just recovery—it’s a key factor in ...

Clearing Brain Plaques Isn’t Enough to Heal Alzheimer’s

Nov. 11, 2025 — Japanese researchers found that lecanemab, an amyloid-clearing drug for Alzheimer’s, does not improve the brain’s waste clearance system in the short term. This implies that nerve damage and ...

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 ...

Hidden Weakness Makes Prostate Cancer Self-Destruct

Nov. 10, 2025 — Researchers have discovered that prostate cancer depends on two key enzymes, PDIA1 and PDIA5, to survive and resist therapy. When blocked, these enzymes cause the androgen receptor to collapse, ...

Scientists Find Brain Chemical Tied to Trauma and Depression

Nov. 10, 2025 — Researchers identified SGK1 as a key chemical connecting childhood trauma to depression and suicidal behavior. High SGK1 levels were found in the brains of suicide victims and in people with genetic ...

New Research Finds No Clear Link Between Acetaminophen (Tylenol) and Autism

Nov. 10, 2025 — A sweeping review of existing studies finds no solid evidence that using acetaminophen (Tylenol) during pregnancy increases the risk of autism or ADHD in children. Researchers found that previous ...

Surprising Heart Study Finds Daily Coffee May Cut AFib Risk by 39%

Nov. 10, 2025 — New research finds that daily coffee drinking may cut AFib risk by nearly 40%, defying decades of medical caution. Scientists discovered that caffeine’s effects on activity, blood pressure, and ...

Vitamin D3 Breakthrough Halves Risk of Second Heart Attack

Nov. 10, 2025 — Intermountain Health researchers discovered that customizing vitamin D3 doses for heart attack survivors slashed their risk of another heart attack by 50%. The strategy involved frequent monitoring ...

A Hidden Breathing Problem May Be Behind Chronic Fatigue’s Crushing Exhaustion

Nov. 10, 2025 — Scientists have discovered that most chronic fatigue patients experience dysfunctional breathing, which may worsen their symptoms. The likely culprit ...

Doctors Found a Way to Stop a Deadly Metformin Reaction

Nov. 9, 2025 — A hospital in Thailand created a quick-action dialysis protocol for patients with metformin-associated lactic acidosis, a dangerous reaction to a common diabetes drug. The program sharply reduced ...

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 ...

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 ...

Common Pesticides May Cause Testicular Damage and Lower Sperm Counts

Nov. 8, 2025 — A decade-long review by George Mason University researchers reveals growing evidence that neonicotinoid insecticides—the world’s most widely used class of pesticides—may harm male reproductive ...

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 ...

Mini Llama Proteins Show Promise for Alzheimer’s Treatment

Nov. 6, 2025 — Miniature antibodies from camels and llamas can slip into the brain more easily than conventional drugs, offering a new way to treat disorders like Alzheimer’s and schizophrenia. Researchers say ...

Common Acne Drug May Protect Against Schizophrenia

Nov. 6, 2025 — Scientists have discovered a surprising benefit of the acne drug doxycycline: it may lower the risk of schizophrenia. Teens prescribed the antibiotic were about one-third less likely to develop the ...

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 ...

New Gel Regrows Tooth Enamel and Could Transform Dentistry

Nov. 6, 2025 — Researchers have created a bioinspired gel that can regenerate tooth enamel by mimicking natural growth processes. The fluoride-free material forms a mineral-rich layer that restores enamel’s ...

Scientists Shocked to Find E. Coli Spreads as Fast as the Swine Flu

Nov. 4, 2025 — Researchers have, for the first time, estimated how quickly E. coli bacteria can spread between people — and one strain moves as fast as swine flu. Using genomic data from the UK and Norway, ...

DNA’s Hidden Power Could Transform How We Make Medicines

Nov. 8, 2025 — Scientists found that DNA’s phosphate groups can direct chemical reactions to make the correct mirror-image form of drug molecules. This breakthrough simplifies chiral drug production, reducing ...

Walking May Be the Brain’s Best Defense Against Alzheimer’s

Nov. 4, 2025 — Walking a few thousand steps daily may help hold off Alzheimer’s for years, a Mass General Brigham study found. Even moderate physical activity slowed both cognitive decline and the buildup of ...

Think Melatonin Is Safe? New Research Reveals a Hidden Heart Risk

Nov. 4, 2025 — Long-term melatonin use for sleep problems may come with unexpected heart dangers. Researchers found that chronic users were almost twice as likely to die and 3.5 times more likely to be hospitalized ...

Your Bedroom Glow Might Be Quietly Damaging Your Heart

Nov. 3, 2025 — Boston researchers linked nighttime light exposure to greater stress-related brain activity and inflamed arteries, signaling a higher risk of heart disease. The study suggests that artificial light ...

A Groundbreaking Brain Map Could Revolutionize Parkinson’s Treatment

Nov. 3, 2025 — Duke-NUS scientists unveiled BrainSTEM, a revolutionary single-cell map that captures the full cellular diversity of the developing human brain. The project’s focus on dopamine neurons provides ...

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 ...

Common Antidepressant Found to Work in Just Two Weeks

Nov. 8, 2025 — Sertraline (Zoloft) may relieve emotional symptoms of depression and anxiety within two weeks, while physical side effects stabilize later. The research highlights how antidepressants can act on ...

New Laser Treatment Could Stop Blindness Before It Starts

Nov. 8, 2025 — Aalto University scientists have created a laser-based treatment that uses gentle heat to stop the progression of dry macular degeneration. The approach stimulates the eye’s natural cleanup and ...

Most Americans Don’t Know Alcohol Can Cause Cancer

Nov. 5, 2025 — Most U.S. adults don’t realize alcohol raises cancer risk, and drinkers themselves are the least aware. Scientists say targeting these misbeliefs could significantly reduce alcohol-related cancer ...