Today's Healthcare News

October 21, 2026

Top Headlines

Astronauts’ Hearts Just Passed a Surprising Test for Mars

Oct. 21, 2026 A new study tracking 13 astronauts suggests that the human heart may be surprisingly well equipped for a journey to Mars, especially with regular exercise during spaceflight. Researchers found that astronauts' hearts adapted to months of ...

Scientists Finally Uncover Why Statins Can Cause Muscle Pain

Oct. 20, 2026 Scientists have uncovered a surprising reason why statins, the widely prescribed cholesterol-lowering drugs that help prevent heart attacks and strokes, can sometimes cause muscle pain, weakness, and even severe muscle damage. Using advanced imaging ...

Scientists Find a Way to Fight Alzheimer’s Brain Damage Without Removing Toxic Tau

Oct. 20, 2026 Scientists have found a promising way to protect the brain from Alzheimer’s-related damage by blocking immune cells that contribute to the destruction of neurons. In mice, the treatment preserved ...

Scientists Discover a Surprising Link Between Vitamin C and Cancer Survival

Oct. 20, 2026 A surprising clinical trial suggests that taking vitamin C daily could improve survival in people with precancerous blood disorders and early-stage blood cancers. Patients receiving the supplement had fewer adverse events and showed a promising ...

Why Some People Escape Alzheimer’s Despite Carrying a High-risk Gene

Oct. 19, 2026 Scientists have discovered why some people with a high genetic risk of Alzheimer’s remain mentally sharp into their 80s, uncovering a rare mutation that protects the brain from harmful protein buildup. The findings reveal a potential new way to ...

"Mind-blowing" Alzheimer’s Breakthrough: Two Hours of Sleep Restored Without Clearing Brain Plaques

Oct. 19, 2026 Scientists have uncovered an unexpected culprit behind sleep loss in Alzheimer’s disease: overactive immune cells in the brain. By temporarily removing these cells, researchers restored more than ...

Fatty Liver Disease Is Actually Five Different Conditions, Scientists Discover

Oct. 18, 2026 A common liver disease affecting nearly 30% of adults worldwide may be far more complicated than scientists previously realized. Mayo Clinic researchers have discovered that fatty liver disease ...

Scientists Discover a Natural Compound That Could Protect the Brain from Too Much Salt

Oct. 18, 2026 Eating too much salt may do more than raise blood pressure. It could also harm memory and social behavior. In a new study, Japanese researchers discovered that a soy-derived compound called LPC70 ...

Scientists Link a Strange Sugar in Red Meat to a 63% Higher Diabetes Risk

Oct. 18, 2026 A study of nearly 90,000 adults found that people consuming the most of a little-known sugar found in red meat had a 63% higher risk of developing type 2 diabetes. Scientists suspect the sugar may trigger chronic inflammation, potentially revealing ...

Scientists Uncover 3 Key Brain Pathways Linked to Lasting Depression Relief

Oct. 18, 2026 Researchers have uncovered three brain pathways linked to lasting improvements in people receiving deep brain stimulation for severe, treatment-resistant depression. They also discovered that patients who failed to improve after two years shared a ...

Scientists Discover That Male and Female Skin Play by Different Rules

Oct. 18, 2026 Scientists have uncovered a surprising difference in how male and female skin repairs and renews itself. By tracking individual skin stem cells in living mice for five months, researchers discovered that female cells work together in a highly ...

Scientists Find a Youth Protein That Helps Aging Brain Cells Act Young Again

Oct. 17, 2026 Scientists have discovered that a protein linked to youth helps protect the brain’s immune cells from age-related decline. Restoring the protein in older mice improved the cells’ ability to clear ...

Latest Headlines

updated 9:50am EDT

New Drug Reverses Severe Fatty Liver Disease by Repairing the Gut

Oct. 17, 2026 Scientists have discovered that a potential new drug can reverse severe fatty liver disease in animal models by restoring gut health and blocking harmful substances from reaching the liver. The ...

Stanford’s New Microscope Reveals Living Cells Like Never Before

Oct. 16, 2026 Stanford scientists have developed a revolutionary microscope that reveals the hidden inner workings of living cells in real time, without the fluorescent labels that can interfere with observations. ...

Yale Scientists Discover How Stress Changes the Brain to Make Memories Stronger

Oct. 16, 2026 Yale scientists have uncovered how the stress hormone cortisol helps the brain turn emotional experiences into stronger, longer-lasting memories. The ...

Eating Late at Night Linked to Up to 30% Higher Risk of Liver Disease

Oct. 15, 2026 Eating late at night could be putting your liver at risk, according to a large study led by Oregon Health & Science University. Researchers analyzed data from nearly 200,000 people and found that ...

Rare Study Reveals a Striking Divide Inside an Alzheimer’s Patient’s Brain

Oct. 15, 2026 A rare examination of an Alzheimer’s patient’s brain revealed that regions cleared of amyloid plaques had remarkably little of the harmful tau ...

Strokes Have Nearly Doubled Among Younger Adults, and Scientists Aren't Sure Why

Oct. 15, 2026 Strokes are becoming alarmingly common among younger adults, with rates nearly doubling among people ages 20 to 54 over nearly three decades. ...

Cancer Is Rising in Younger Adults, and Scientists Can't Fully Explain Why

Oct. 14, 2026 A major study found that several cancers are rising faster among younger adults in England, even as smoking, diet, and other established risk factors have generally improved. Excess weight explains ...

New Knee Arthritis Treatment Delivers Lasting Pain Relief Without Surgery

Oct. 14, 2026 A promising new treatment for knee arthritis uses tiny, dissolvable particles to block abnormal blood vessels, easing inflammation and pain without joint replacement surgery. In a study of 194 ...

Scientists Uncover a Hidden Map of the Brain With 539 Distinct Regions

Oct. 13, 2026 Scientists have uncovered a hidden layer of organization in the brain by creating the first detailed 3D map of its lipids, the fatty molecules essential for brain structure and communication. By ...

After 30 Years, Scientists Finally Have a Drug for a Deadly Brain Disease

Oct. 12, 2026 The FDA has approved the first drug that directly targets Alexander disease, a devastating neurological disorder affecting fewer than one in a million people. Developed through decades of research, ...

Eating Olive Oil Before Carbs Has a Surprising Effect on Blood Sugar

Oct. 11, 2026 A simple change in the order you eat your food could help prevent blood sugar spikes. Scientists discovered that giving mice olive oil before carbohydrates slowed digestion and activated a surprising ...

Scientists Discover Vanilla’s Hidden Healing Potential

Oct. 12, 2026 Scientists have discovered that vanillin, the compound that gives vanilla its distinctive flavor, has powerful properties that could help fight infections, reduce inflammation, and promote wound ...

Drug Target Could Block Brain Inflammation Linked to Alzheimer’s and Parkinson’s

Oct. 7, 2026 Blocking a receptor called P2X7 significantly reduced inflammation in human brain tissue, revealing a potential new treatment strategy for neurological and psychiatric disorders. The discovery could ...

Colorectal Cancer Is Rising in Young People and Often Found Too Late

Oct. 6, 2026 Colorectal cancer in young people is often diagnosed at an advanced stage, with researchers finding most patients age 21 or younger already had Stage III or IV disease. Because symptoms like rectal ...

One Simple Addition to Postpartum Care Made a Major Difference

Oct. 6, 2026 New mothers paired with patient navigators were much more likely to receive postpartum care, depression screening, preventive testing, and ongoing primary care. By helping with barriers such as ...

New Injection Makes Fat Cells Self-Destruct

Oct. 11, 2026 Scientists have developed an experimental injection that destroys fat cells and significantly reduces dangerous belly fat, potentially opening a new path to treating obesity. Early research also ...

Taking Antibiotics? Sugar May Be Making the Damage Worse

Oct. 7, 2026 Eating more sugar while taking antibiotics was linked to greater disruption of the gut microbiome and increased growth of potentially harmful bacteria. Researchers say temporarily cutting back on ...

Diet Drinks Work as Well as Water for Weight Loss, Major Trial Finds

Oct. 3, 2026 A two-year randomized clinical trial involving 493 adults with overweight or obesity found that diet soft drinks were essentially as effective as water for long-term weight loss and weight ...

Alzheimer’s Risk Gene APOE4 May Have a Reversible Weakness

Oct. 1, 2026 The Alzheimer’s risk gene APOE4 may actively damage brain blood vessels and sabotage the cellular systems that remove harmful proteins. Researchers were able to reverse some of these effects in ...

Scientists Discover 5 Hidden Brain Patterns Behind Depression

Oct. 9, 2026 Depression may not be one biological condition, but several distinct patterns of brain activity hiding under the same diagnosis. Researchers studying 263 people with depression identified five brain ...

This Protective Enzyme Could Help Stop Fatty Liver Disease from Getting Worse

Oct. 3, 2026 Scientists have identified an enzyme that may act as a natural defense against the worsening of fatty liver disease, which affects an estimated 100 million Americans. The enzyme, called UBE2N, helps ...

Nearly 6 in 10 People With High Blood Pressure Don’t Know They Have It

Oct. 2, 2026 Nearly 6 in 10 people with high blood pressure in a large England study had never been diagnosed or treated, and half of those already taking medication still had elevated readings. Researchers say a ...

Stanford Scientists Discover the Human Brain May Actually Be Two Separate Organs

Sep. 21, 2026 Scientists have found that the human brain develops from two distinct cellular systems, suggesting that evolution fused together two ancient nervous systems with very different jobs. The discovery ...

Your Gut Bacteria May Reveal How Fast Your Brain Is Aging

Oct. 4, 2026 A UCLA study links faster brain aging to specific gut bacteria and chemical byproducts, with older-looking brains also associated with poorer memory, focus, and mood. The findings suggest that ...

Your Next Prescription Could Be Treating a Side Effect from the Last One

Sep. 11, 2026 A major Ontario study found 24 common medication chains in which one drug’s side effects can be mistaken for a new medical problem, leading to another prescription. Researchers say closer ...

Too Much Light at Night May Quietly Reshape Your Heart

Sep. 11, 2026 Nighttime light exposure was linked to thicker, stiffer heart chambers and early signs of reduced heart function in a study of more than 11,000 people. The findings suggest that keeping bedrooms ...

UCLA Scientists Turn Cord Blood Into Powerful Cancer-Fighting T Cells

Sep. 10, 2026 UCLA researchers developed ready-made cancer-fighting T cells from cord blood stem cells that can attack solid tumors through two separate detection systems. In mice, a single dose controlled cancer ...

Hidden Stem Cells May Be Fueling Spinal Stenosis

Sep. 28, 2026 Scientists have discovered a stem cell that appears to serve as a master source for tendon and ligament cells throughout the body. In lumbar spinal stenosis, these cells become unusually active and ...

Scientists Found a Surprising Driver of Alzheimer’s Outside the Brain

Sep. 27, 2026 Scientists found that immune cells contributing to Alzheimer’s-related brain damage may be activated in lymph nodes outside the brain before traveling into the nervous system. Blocking this pathway ...

Scientists Reveal the Hidden Instructions That Build the Human Brain

Sep. 4, 2026 UCLA researchers have discovered two powerful influences that help guide how the human brain forms before birth. Radial glia, stem cells responsible for producing much of the cerebral cortex, change ...