Chronic Illness News

March 21, 2026

Top Headlines

Men Are Losing a Key Chromosome with Age and It May Be Deadly

Mar. 20, 2026 Aging men often lose the Y chromosome in a growing number of their cells—and it may be far more dangerous than once believed. This loss has been linked to heart disease, cancer, Alzheimer’s, and shorter lifespans. Researchers suspect Y-less ...

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 mental health worse, raising risks like psychosis ...

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 preventing shingles may also stop clot-related ...

Gum Disease Bacterium Linked to Breast Cancer Growth and Spread

Mar. 19, 2026 A common oral bacterium tied to gum disease may help spark and fuel breast cancer, according to new research. Scientists discovered it can travel through the bloodstream to breast tissue, where it causes DNA damage and speeds tumor growth and ...

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 discontinue these drugs manage to keep the weight ...

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 consuming around nine servings per day had a 67% ...

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 people with normal weight. Inflammation seems to play ...

The Surprising Cancer Link Between Cats and Humans

Mar. 18, 2026 Scientists have mapped the genetics of cancer in cats for the first time at scale, uncovering major overlaps with human cancers. Key mutations—like those linked to breast cancer—appear in both species, and some human cancer drugs may also work ...

New Drug Protects Liver After Intestinal Surgery and Boosts Nutrient Absorption

Mar. 18, 2026 A risky but often lifesaving surgery that removes damaged parts of the small intestine can leave patients facing a new threat: serious liver damage with no available treatment. Now, scientists have ...

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, constipation, and IBS. Scientists discovered that ...

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 “sleep-like” activity during demanding tasks. These ...

Fixing a Tooth Infection May Improve Blood Sugar and Heart Health

Mar. 17, 2026 A new clinical study suggests that successful root canal treatment may benefit more than just dental health. Patients treated for infected teeth showed improved blood sugar control, healthier cholesterol levels, and reduced inflammation over time. ...

Latest Headlines

updated 8:42am EDT

Scientists Inject One Tumor and Watch Cancer Vanish Across the Body

Mar. 16, 2026 A redesigned cancer immunotherapy is showing striking early results after decades of disappointment with similar drugs. Researchers engineered a more powerful CD40 agonist antibody and changed how ...

Common Pesticide May More Than Double Parkinson’s Disease Risk

Mar. 16, 2026 A new UCLA Health study suggests that long-term exposure to the pesticide chlorpyrifos may dramatically raise the risk of Parkinson’s disease. Researchers found that people living in areas with ...

Millions of Kids Take Melatonin but Doctors Are Raising Red Flags

Mar. 15, 2026 Melatonin is now widely used to help children sleep, but scientists say the enthusiasm may be getting ahead of the evidence. A major review found clear benefits for children with conditions like ...

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 ...

Scientists Discover ALS Protein That Links DNA Repair to Cancer and Dementia

Mar. 15, 2026 A protein tied to ALS and dementia may have a much bigger role in disease than scientists realized. Researchers found that TDP43 controls a key DNA ...

Microplastics May Be Quietly Damaging Your Brain and Fueling Alzheimer’s and Parkinson’s

Mar. 13, 2026 Tiny plastic particles may be quietly threatening brain health. New research suggests microplastics—now widely found in food, water, and even ...

Severe COVID or Flu May Raise Lung Cancer Risk Years Later

Mar. 13, 2026 A severe case of COVID-19 or influenza could increase the risk of lung cancer later on, according to new research. Scientists discovered that serious viral infections can alter immune cells in the ...

Depression May Start With an Energy Problem in Brain Cells

Mar. 12, 2026 Researchers have discovered a surprising change in how cells produce energy in people with depression. Brain and blood cells in young adults with major depressive disorder produced more energy ...

A Surprising Blood Protein Pattern May Reveal Alzheimer’s

Mar. 12, 2026 A new study suggests Alzheimer’s disease may be detectable through subtle shape changes in proteins found in the blood. Researchers discovered that structural differences in three blood proteins ...

Scientists Discover Molecule That Stops Aggressive Breast Cancer in Its Tracks

Mar. 10, 2026 Scientists at Oregon Health & Science University have developed a new molecule that could open the door to treating triple-negative breast cancer, ...

Brain Scans Reveal How Ketamine Quickly Lifts Severe Depression

Mar. 8, 2026 A new brain-imaging study has revealed how ketamine produces its fast antidepressant effects in people with treatment-resistant depression. Researchers tracked changes in a critical brain receptor ...

Parents’ Stress May Be Quietly Driving Childhood Obesity, Yale Study Finds

Mar. 8, 2026 A Yale study found that lowering parent stress can help protect young children from obesity. When parents practiced mindfulness and stress-management skills, their kids showed healthier eating ...

Cannabis Compounds CBD and CBG May Help Reverse Fatty Liver Disease, Study Finds

Mar. 6, 2026 CBD and CBG, two non-intoxicating cannabis compounds, may help combat fatty liver disease by boosting liver energy reserves and restoring cellular cleanup systems. In the study, both compounds ...

Boosting a Key Brain Protein Could Help Treat Rett Syndrome

Mar. 6, 2026 Researchers have discovered a new way to increase a key brain protein damaged in Rett syndrome, a rare genetic disorder that affects thousands of children worldwide. Early studies in mice and ...

AI Blood Test Finds Silent Liver Disease Years Before Symptoms

Mar. 6, 2026 Researchers created an AI-driven liquid biopsy that scans patterns in fragments of DNA circulating in the blood. The system detected early liver fibrosis and cirrhosis—conditions that often go ...

New Drug Cuts Seizures by Up to 91% in Children With Rare Epilepsy

Mar. 4, 2026 A new experimental drug is showing remarkable promise for children with Dravet syndrome, a severe genetic form of epilepsy. In clinical trials, the treatment zorevunersen cut seizures by as much as ...

Ozempic-Like Weight Loss Drugs May Help the Heart Recover After a Heart Attack

Mar. 4, 2026 Popular weight-loss drugs such as Ozempic, Wegovy, and Mounjaro may do more than help people shed pounds. New research suggests these GLP-1 medications could also help protect the heart after a heart ...

How the Body Really Ages: 7 Million Cells Mapped Across 21 Organs

Feb. 28, 2026 Scientists have built a massive cellular atlas showing how aging reshapes the body across 21 organs. Studying nearly 7 million cells, they found that aging starts earlier than expected and unfolds in ...

PFAS Found in Most Americans Linked to Rapid Biological Aging

Feb. 26, 2026 “Forever chemicals” known as PFAS have quietly infiltrated everything from nonstick pans to food packaging—and now new research suggests some of them may be speeding up the aging process ...

Scientists Found a Surprising Way to Make Exercise Work Better

Mar. 9, 2026 Exercise normally boosts the body’s ability to use oxygen, a key marker of health and longevity — but high blood sugar can block that benefit. Researchers found that a ketogenic diet helped mice ...

American Heart Association Warns 60% of US Women Will Have Cardiovascular Disease by 2050

Feb. 27, 2026 Heart disease is on track to tighten its grip on American women. New projections from the American Heart Association warn that over the next 25 years, cardiovascular disease will rise sharply, driven ...

Hidden Architecture Inside Cellular Droplets Opens New Targets for Cancer and ALS

Feb. 26, 2026 Biomolecular condensates were long believed to be simple liquid blobs inside cells. Researchers have now uncovered that some are actually supported by fine protein filaments forming an internal ...

New Brain Stimulation Approach Could Treat Depression in Just 5 Days

Feb. 25, 2026 A weeklong, high-intensity version of TMS may work nearly as well as the standard six-week treatment for depression. In a UCLA study, patients who received five sessions a day for five days ...

Scientists Discover Why High Altitude Protects Against Diabetes

Feb. 21, 2026 Living at high altitude appears to protect against diabetes, and scientists have finally discovered the reason. When oxygen levels drop, red blood cells switch into a new metabolic mode and absorb ...

Scientists Finally Explain Why Chronic Constipation Treatments Often Fail

Feb. 19, 2026 A newly discovered bacterial duo may be the hidden cause of chronic constipation. The two microbes break down the colon’s protective mucus layer, leaving stool dry and hard — a problem ...

Ultramarathons May Damage Red Blood Cells and Accelerate Aging

Feb. 21, 2026 Running extreme distances may strain more than just muscles and joints. New research suggests ultramarathons can alter red blood cells in ways that make them less flexible and more prone to ...

Scientists Reveal How Exercise Protects the Brain from Alzheimer’s

Feb. 20, 2026 Exercise may sharpen the mind by repairing the brain’s protective shield. Researchers found that physical activity prompts the liver to release an enzyme that removes a harmful protein causing the ...

Hidden Ingredient in Ozempic and Wegovy Tablets Raises New Gut Health Questions

Mar. 1, 2026 Scientists are taking a closer look at the pill forms of Wegovy and Ozempic. In an animal study, the ingredient SNAC, which helps semaglutide survive the stomach and enter the bloodstream, was ...

Massive Review Suggests Exercise May Do Little for Osteoarthritis Pain

Feb. 25, 2026 A sweeping new analysis of the evidence suggests that exercise therapy — long promoted as a first-line treatment for osteoarthritis — may offer only small and short-lived relief, and in some ...

Generative AI Analyzes Medical Data Faster Than Human Research Teams

Feb. 21, 2026 Researchers tested whether generative AI could handle complex medical datasets as well as human experts. In some cases, the AI matched or outperformed teams that had spent months building prediction ...