Top Health News

January 21, 2026

Top Headlines

Stanford Scientists Found a Way to Regrow Cartilage and Stop Arthritis

Jan. 20, 2026 Scientists at Stanford Medicine have discovered a treatment that can reverse cartilage loss in aging joints and even prevent arthritis after knee injuries. By blocking a protein linked to aging, the therapy restored healthy, shock-absorbing ...

Patients Tried Everything for Depression Then This Implant Changed Their Lives

Jan. 20, 2026 Researchers report that vagus nerve stimulation helped many people with long-standing, treatment-resistant depression feel better—and stay better—for at least two years. Most participants had ...

Scientists Solve a Major Roadblock Holding Back Cancer Cell Therapy

Jan. 20, 2026 Researchers have found a reliable way to grow helper T cells from stem cells, solving a major challenge in immune-based cancer therapy. Helper T cells act as the immune system’s coordinators, helping other immune cells fight longer and harder. The ...

Major Review Finds No Autism or ADHD Risk from Pregnancy Tylenol

Jan. 19, 2026 A major new scientific review brings reassuring news for expectant parents: using acetaminophen, commonly known as Tylenol, during pregnancy does not increase a child’s risk of autism, ADHD, or intellectual disability. Researchers analyzed 43 ...

Cannabis Was Touted for Nerve Pain. the Evidence Falls Short

Jan. 19, 2026 Cannabis-based medicines have been widely promoted as a potential answer for people living with chronic nerve pain—but a major new review finds the evidence just isn’t there yet. After analyzing more than 20 clinical trials involving over 2,100 ...

The Real Danger of Tylenol Has Nothing to Do with Autism

Jan. 18, 2026 While social media continues to circulate claims linking acetaminophen to autism in children, medical experts say those fears distract from a far more serious and proven danger: overdose. Acetaminophen, found in Tylenol and many cold and flu ...

Scientists Sent Viruses to Space and They Evolved in Surprising Ways

Jan. 18, 2026 When scientists sent bacteria-infecting viruses to the International Space Station, the microbes did not behave the same way they do on Earth. In microgravity, infections still occurred, but both viruses and bacteria evolved differently over time. ...

AI Maps the Hidden Forces Shaping Cancer Survival Worldwide

Jan. 17, 2026 Researchers have turned artificial intelligence into a powerful new lens for understanding why cancer survival rates differ so dramatically around the world. By analyzing cancer data and health system information from 185 countries, the AI model ...

An Endocrinologist Tried a New Weight Loss Approach and It Worked

Jan. 17, 2026 A simple change in how primary care clinics approach weight management is delivering big public health wins. PATHWEIGH lets patients openly request help and gives doctors the tools to focus entire visits on weight care. In a massive real-world ...

Scientists Are Rethinking Bamboo as a Powerful New Superfood

Jan. 16, 2026 Bamboo shoots may be far more than a crunchy side dish. A comprehensive review found they can help control blood sugar, support heart and gut health, and reduce inflammation and oxidative stress. Laboratory and human studies also suggest bamboo may ...

Vitamin a May Be Helping Cancer Hide from the Immune System

Jan. 16, 2026 A vitamin A byproduct has been found to quietly disarm the immune system, allowing tumors to evade attack and weakening cancer vaccines. Scientists have now developed a drug that shuts down this pathway, dramatically boosting immune responses and ...

Statins May Help Almost Everyone with Type 2 Diabetes Live Longer

Jan. 15, 2026 New research suggests statins may protect adults with type 2 diabetes regardless of how low their predicted heart risk appears. In a large UK study, statin use was linked to fewer deaths and major cardiac events across all risk levels. Even those ...

Latest Headlines

updated 11:32am EST

Scientists Are Building Viruses from Scratch to Fight Superbugs

Jan. 21, 2026 Researchers from New England Biolabs (NEB®) and Yale University describe the first fully synthetic bacteriophage engineering system for Pseudomonas aeruginosa, an antibiotic-resistant bacterium ...

Tiny Doses of THC Show Big Benefits for HIV Treatment

Jan. 21, 2026 A new study suggests that micro-doses of THC could help counter many long-term side effects of HIV treatment without causing intoxication. In animal models, low-dose THC reduced inflammation, ...

Finally Explained: Why Kidney Disease Is So Deadly for the Heart

Jan. 20, 2026 Scientists have uncovered why people with chronic kidney disease so often die from heart problems: damaged kidneys release tiny particles into the bloodstream that actively poison the heart. These ...

Scientists Identify Hidden Protein Interaction Driving Parkinson’s Disease

Jan. 20, 2026 Researchers have identified a key molecular interaction that accelerates Parkinson’s disease by damaging the brain’s energy systems. They ...

A Common Painkiller May Be Quietly Changing Cancer Risk

Jan. 20, 2026 Ibuprofen may be doing more than easing aches and pains—it could also help reduce the risk of some cancers. Studies have linked regular use to lower rates of endometrial and bowel cancer, likely ...

Scientists Discover Why Some Wounds Refuse to Heal

Jan. 20, 2026 Scientists have uncovered a surprising reason why some chronic wounds refuse to heal, even when treated with antibiotics. A common bacterium found in long-lasting wounds does not just resist drugs. ...

A Global DNA Study Reveals a Hidden Threat in Diabetic Foot Infections

Jan. 20, 2026 Scientists have uncovered new clues about why diabetic foot infections can become so severe and difficult to treat. By analyzing the DNA of E. coli bacteria taken from infected wounds around the ...

A “dormant” Brain Protein Turns out to Be a Powerful Switch

Jan. 19, 2026 Scientists at Johns Hopkins have uncovered a surprising new way to influence brain activity by targeting a long-mysterious class of proteins linked to anxiety, schizophrenia, and movement disorders. ...

How Cancer Disrupts the Brain and Triggers Anxiety and Insomnia

Jan. 18, 2026 Scientists have discovered that breast cancer can quietly throw the brain’s internal clock off balance—almost immediately after cancer begins. In mice, tumors flattened the natural daily rhythm ...

Scientists Find ‘master Regulator’ That Could Reverse Brain Aging

Jan. 18, 2026 Researchers have identified OTULIN, an immune-regulating enzyme, as a key trigger of tau buildup in the brain. When OTULIN was disabled, tau vanished from neurons and brain cells remained healthy. ...

New Research Shows Emotional Expressions Work Differently in Autism

Jan. 19, 2026 Researchers found that autistic and non-autistic people move their faces differently when expressing emotions like anger, happiness, and sadness. Autistic participants tended to rely on different ...

Tiny Earthquakes Are Revealing a Dangerous Secret Beneath California

Jan. 17, 2026 Scientists are uncovering a hidden and surprisingly complex earthquake zone beneath Northern California by tracking swarms of tiny earthquakes that are far too weak to feel. These faint tremors are ...

Scientists Found Hidden Synapse Hotspots in the Teen Brain

Jan. 16, 2026 Scientists have discovered that the adolescent brain does more than prune old connections. During the teen years, it actively builds dense new clusters of synapses in specific parts of neurons. These ...

Researchers Found a Tipping Point for Video Gaming and Health

Jan. 16, 2026 Moderate video gaming appears harmless, but heavy gaming may take a toll on young people’s health. Researchers found that students gaming more than 10 hours a week had worse diets, higher body ...

This After-Meal Blood Sugar Spike May Raise Alzheimer’s Risk

Jan. 15, 2026 Spikes in blood sugar after eating may be more dangerous for the brain than previously thought. In a massive genetic study, people with higher post-meal blood sugar had a much greater risk of ...

This Sweet Fruit Is Packed With Hidden Health Compounds

Jan. 14, 2026 Scientists are taking a closer look at monk fruit and discovering it’s more than just a sugar substitute. New research shows its peel and pulp contain a rich mix of antioxidants and bioactive ...

How Scientists Are Turning Thyme Into Precision Medicine

Jan. 17, 2026 Thyme extract is packed with health-promoting compounds, but it is difficult to control and easy to waste. Researchers created a new technique that traps tiny amounts of the extract inside ...

A Routine Eye Treatment Is Raising New Concerns for Glaucoma Patients

Jan. 16, 2026 A new study warns that a widely used eye ointment can damage a popular glaucoma implant. Researchers found that oil-based ointments can be absorbed into the implant’s material, causing it to swell ...

Massive Brain Study Reveals Why Memory Loss Can Suddenly Speed Up With Age

Jan. 14, 2026 A massive international brain study has revealed that memory decline with age isn’t driven by a single brain region or gene, but by widespread structural changes across the brain that build up over ...

Scientists Found the Brain Rhythm That Makes Your Body Feel Like Yours

Jan. 14, 2026 A new study reveals that alpha brain waves help the brain decide what belongs to your body. Faster rhythms allow the brain to match sight and touch more precisely, strengthening the feeling that a ...

Millions With Dementia Still Prescribed Drugs Linked to Falls and Confusion

Jan. 13, 2026 Despite longstanding guidelines, many dementia patients are still prescribed brain-altering medications that can raise the risk of falls and confusion. A new study shows that while prescribing has ...

This New Sugar Tastes Like the Real Thing Without the Usual Downsides

Jan. 13, 2026 Scientists at Tufts have found a way to turn common glucose into a rare sugar that tastes almost exactly like table sugar—but with far fewer downsides. Using engineered bacteria as microscopic ...

A New Test Reveals Which Antibiotics Truly Kill Bacteria

Jan. 12, 2026 Some antibiotics stop bacteria from growing without actually killing them, allowing infections to return later. Scientists at the University of Basel created a new test that tracks individual ...

Doctors Discover the Source of Mysterious Intoxication

Jan. 13, 2026 Some people get drunk without drinking because their gut bacteria produce alcohol from food. Researchers have now identified the microbes and biological pathways behind this rare condition, ...

MIT’s Smart Pill Confirms You Took Your Medicine

Jan. 13, 2026 MIT engineers have developed a pill that can wirelessly report when it’s been swallowed. Inside the capsule is a biodegradable antenna that sends a signal within minutes of ingestion, then safely ...

A Room Full of Flu Patients and No One Got Sick

Jan. 11, 2026 In a striking real-world experiment, flu patients spent days indoors with healthy volunteers, but the virus never spread. Researchers found that limited coughing and well-mixed indoor air kept virus ...

A Hidden Loop Is Powering Deadly Pancreatic Cancer

Jan. 10, 2026 Pancreatic cancer is notoriously hard to treat, often resisting therapies that target its most common mutations. Researchers have now uncovered a hidden three-part loop that fuels tumor growth, ...

This Natural Amino Acid Could Help Stop Cavities Before They Start

Jan. 9, 2026 Sugar-loving mouth bacteria create acids that damage teeth, but arginine can help fight back. In a clinical trial, arginine-treated dental plaque stayed less acidic, became structurally less harmful, ...

Scientists Found a Way to Supercharge the Immune System Against Cancer

Jan. 9, 2026 Researchers have developed a new class of antibodies that amplify the immune system’s ability to fight cancer. By clustering immune receptors that normally receive weak signals from tumors, these ...

The 4x Rule: Why Some People’s DNA Is More Unstable Than Others

Jan. 9, 2026 A large genetic study shows that many people carry DNA sequences that slowly expand as they get older. Common genetic variants can dramatically alter how fast this expansion happens, sometimes ...