Top Health News

March 29, 2026

Top Headlines

New Cholesterol Guidelines Could Change When You Get Tested

Mar. 29, 2026 A major new U.S. cholesterol guideline is shifting the focus toward earlier, more personalized prevention of heart disease. It urges people to start screening sooner—sometimes even in childhood—and highlights the importance of tracking not just ...

Scientists Say the Evidence Is Clear: E-cigarettes Beat Patches and Gum in Helping Smokers Quit

Mar. 29, 2026 Nicotine e-cigarettes may be one of the most effective tools yet for quitting smoking, according to a sweeping review of global research. By analyzing findings from 14 major reviews spanning nearly a ...

This New Therapy Turns Off Pain Without Opioids or Addiction

Mar. 28, 2026 Scientists have developed a new gene therapy that quiets pain at its source in the brain—without the addictive risks of opioids. Using AI to map how pain is processed, they created a targeted “off switch” that mimics morphine’s benefits but ...

Mar. 28, 2026 A widely used sugar substitute found in everything from keto snacks to diet drinks may not be as harmless as it seems. New research shows that erythritol can disrupt brain blood vessel cells, reducing their ability to relax, increasing harmful ...

Scientists Discover Why Your Appetite Suddenly Disappears When You’re Sick

Mar. 28, 2026 Scientists have uncovered how your body actually tells your brain to stop eating when you’re sick. In a new study, researchers found that specialized cells in the gut detect parasites and send ...

Scientists Discover a Hidden System That Turns Brown Fat Into a Calorie Burner

Mar. 28, 2026 Scientists have identified a key biological system that helps brown fat burn energy by building the networks it needs to function. A protein called SLIT3 splits into two parts, with each piece ...

Scientists Discover Why Cancer Drugs Don’t Work for Everyone

Mar. 27, 2026 Scientists have uncovered a hidden reason why cancer treatments don’t work equally well for everyone. Certain drugs can become trapped inside lysosomes within tumor cells, forming slow-release reservoirs that create uneven drug distribution. This ...

Scientists Discover “Overflow Valve” in Cells Linked to Parkinson’s Disease

Mar. 26, 2026 Researchers have identified a crucial ion channel, TMEM175, that acts like an overflow valve in the cell’s recycling system. It regulates acidity inside lysosomes, ensuring they function properly. ...

What You Do in Midlife Could Reveal How Long You’ll Live

Mar. 26, 2026 By closely monitoring fish throughout their lives, researchers found that simple behaviors in midlife—like movement and sleep—can predict lifespan. Fish that stayed active and slept mostly at night tended to live longer, while those slowing down ...

Scientists Find Immune Cell Linked to Long COVID Fatigue and Symptoms

Mar. 26, 2026 Long COVID remains a frustrating medical mystery, affecting up to 1 in 10 people long after the initial infection fades. Now, scientists have uncovered a crucial clue hidden deep within the immune system. By analyzing individual immune cells, they ...

Deepfake X-rays Are so Real Even Doctors Can’t Tell the Difference

Mar. 26, 2026 Deepfake X-rays created by AI are now convincing enough to fool both doctors and AI models. In tests, radiologists had limited success identifying fake images, especially when they didn’t know they were being shown. This opens the door to risks ...

Vivid Dreams May Be the Secret to Deeper, More Restful Sleep

Mar. 26, 2026 Vivid dreams might be doing more than just entertaining your mind at night. Researchers found that immersive dreaming can actually make sleep feel deeper and more refreshing, even when brain activity is high. Surprisingly, people reported their ...

Latest Headlines

updated 5:44am EDT

What Teens Eat Could Be Affecting Their Mental Health More Than We Thought

Mar. 29, 2026 What teens eat might matter more for their mental health than previously thought. A sweeping review of nearly 20 studies found that healthier diets are often linked to fewer depressive symptoms, ...

Mar. 27, 2026 A new study reveals that high doses of antioxidants—often seen as harmless or beneficial—may actually impact future generations. Male mice given common supplements like NAC produced offspring ...

Scientists Find Gut Bacteria Inject Proteins That Control Your Immune System

Mar. 27, 2026 Gut bacteria aren’t just passive passengers—they can actively send proteins straight into our cells. Using microscopic injection systems, even ...

This Dangerous Combo in Your Body Could Raise Death Risk by 83%

Mar. 27, 2026 Having both excess belly fat and low muscle mass isn’t just unhealthy—it’s potentially deadly, raising the risk of death by 83%. This condition, called sarcopenic obesity, creates a vicious ...

Cold Weather Linked to 40,000 Extra Heart Deaths Each Year in the U.S.

Mar. 25, 2026 When temperatures plunge, the risk to your heart rises dramatically. A large U.S. study shows cold weather is linked to far more cardiovascular deaths than heat, accounting for tens of thousands of ...

Scientists Discover Why This Deadly Lung Cancer Keeps Coming Back

Mar. 25, 2026 Scientists have discovered that losing a key protein in small cell lung cancer triggers inflammation that actually helps tumors grow and spread. Even more surprising, it pushes cancer cells into a ...

Metformin’s Hidden Brain Pathway Revealed After 60 Years

Mar. 25, 2026 A major discovery reveals that metformin works not just in the body, but in the brain. By switching off a key protein and activating specific neurons, the drug lowers blood sugar through a previously ...

Most Americans Don’t Know This Food Raises Colon Cancer Risk

Mar. 25, 2026 Nearly half of Americans don’t know that processed meat increases colorectal cancer risk, according to a new poll. But once they learn the connection, most support warning labels—suggesting ...

Why Your Brain May Be Sabotaging Your Balance as You Age

Mar. 25, 2026 Balance problems in aging and Parkinson’s may come from the body working too hard, not too little. Scientists found that the brain and muscles become overactive during even minor disturbances, yet ...

First Ever Atomic Movie Reveals Hidden Driver of Radiation Damage

Mar. 24, 2026 Researchers have visualized atoms in motion just before a radiation-driven decay process occurs, revealing a surprisingly dynamic scene. Instead of remaining fixed, the atoms roam and rearrange, ...

This New Carbon Material Could Make Carbon Capture Far More Affordable

Mar. 28, 2026 Scientists have created a new kind of carbon material that could make carbon capture much cheaper and more efficient. By carefully controlling how nitrogen atoms are arranged, they found certain ...

Scientists Just Discovered Bees and Hummingbirds Are Drinking Alcohol

Mar. 25, 2026 Flower nectar often contains small amounts of alcohol, meaning pollinators like hummingbirds are drinking it all day long. Despite consuming human-equivalent amounts, they show no signs of ...

Fathers Face Rising Depression Risk a Year After Baby Arrives

Mar. 24, 2026 New fathers appear to have fewer mental health diagnoses during pregnancy and the early months after birth. But that early stability does not last. About a year later, depression and stress-related ...

Hidden Antibiotics in River Fish Spark New Food Safety Fears

Mar. 21, 2026 Antibiotics are accumulating in a major Brazilian river, especially during the dry season when pollution becomes more concentrated. Scientists even detected a banned drug inside fish sold for food, ...

Most Mass Spectrometers Handle a Few Molecules. This New Prototype Handles Billions

Mar. 25, 2026 A new prototype could supercharge mass spectrometry by analyzing thousands of molecules at once instead of one by one. The breakthrough boosts sensitivity enough to reveal rare, hidden ...

Weight Loss Drug Ozempic Cuts Depression, Anxiety, and Addiction Risk

Mar. 22, 2026 GLP-1 medications like semaglutide (Ozempic) may offer unexpected mental health benefits alongside weight loss. A large study found major drops in depression, anxiety, and psychiatric-related ...

Scientists Turn Probiotic Bacteria Into Tumor-Hunting Cancer Killers

Mar. 21, 2026 Scientists have engineered probiotic bacteria to act as tumor-seeking drug factories. In mice, these bacteria infiltrated tumors and produced a cancer-fighting drug right where it was needed. This ...

These “forever Chemicals” Could Be Weakening Kids’ Bones for Life

Mar. 21, 2026 “Forever chemicals” may be affecting kids in ways that last a lifetime. A new study links early PFAS exposure to lower bone density during the teen years, especially in girls. Researchers also ...

Closing Your Eyes to Hear Better Might Be a Big Mistake

Mar. 20, 2026 Many people believe closing their eyes sharpens hearing, but that is not always true. In noisy settings, participants struggled more to hear faint sounds with their eyes closed, while matching ...

Ultra-Processed Foods Linked to 67% Higher Risk of Heart Attack and Stroke

Mar. 19, 2026 Eating large amounts of ultra-processed foods like chips, frozen meals, sugary drinks, and packaged snacks may significantly raise the risk of serious heart problems. In a major U.S. study, people ...

Belly Fat Linked to Heart Failure Risk Even in People With Normal Weight

Mar. 19, 2026 Carrying extra fat around the waist may be more dangerous than the number on the scale suggests. Researchers found that belly fat was more strongly linked to heart failure risk than BMI, even in ...

This Common Vaccine Cuts Heart Risk Nearly in Half in New Study

Mar. 20, 2026 A shingles vaccine might double as a powerful heart protector. In people already at high risk, it cut major cardiac events by 46% and deaths by an impressive 66% within a year. Scientists think ...

The Best Strength Training Plan Might Be Simpler Than You Think

Mar. 19, 2026 New strength training guidelines emphasize that doing any resistance training is what truly matters. Based on decades of research, experts say even simple routines can increase muscle, strength, and ...

Huge Study Finds No Evidence Cannabis Helps Anxiety, Depression, or PTSD

Mar. 20, 2026 The largest review of medicinal cannabis to date found it doesn’t effectively treat anxiety, depression, or PTSD—despite millions using it for those reasons. Researchers warn it could even make ...

Scientists Link Childhood Stress to Lifelong Digestive Issues

Mar. 17, 2026 Early life stress may set the stage for long-term digestive problems by disrupting the gut-brain connection. Studies in both mice and thousands of children found links to symptoms like pain, ...

ADHD Brains Show Sleep-Like Activity Even While Awake

Mar. 17, 2026 Researchers have identified a surprising brain pattern that may help explain why people with ADHD often struggle to stay focused. Even while awake, their brains can slip into brief episodes of ...

What Happens After Ozempic Shocked Researchers

Mar. 19, 2026 Stopping popular weight-loss injections like Ozempic or Mounjaro might not trigger the dramatic rebound many fear. A large real-world study of nearly 8,000 patients found that most people who ...

Scientists Tested Vitamin D for COVID and Found an Unexpected Long COVID Clue

Mar. 15, 2026 A major clinical trial has delivered an unexpected twist in the search for ways to fight COVID-19 and its lingering effects. Researchers at Mass General Brigham found that taking high doses of ...

Fathers’ Tobacco Use Linked to Metabolic Changes in Their Children

Mar. 15, 2026 A new study in mice suggests that a father’s nicotine exposure could influence the metabolic health of his children. Researchers found that when male mice consumed nicotine, their offspring showed ...

A Lab Mistake at Cambridge Reveals a Powerful New Way to Modify Drug Molecules

Mar. 14, 2026 Cambridge scientists have discovered a light-powered chemical reaction that lets researchers modify complex drug molecules at the final stages of development. Unlike traditional methods that rely on ...