Diseases and Conditions News

January 29, 2026

Top Headlines

A Simple Blood Test Could Spot Parkinson’s Years Before Symptoms

Jan. 29, 2026 Scientists in Sweden and Norway have uncovered a promising way to spot Parkinson’s disease years—possibly decades—before its most damaging symptoms appear. By detecting subtle biological signals in the blood tied to how cells handle stress and ...

Study Raises Red Flags over Long-term Effectiveness of Popular Weight Loss Drugs Like Ozempic

Jan. 29, 2026 Ozempic, Mounjaro, and Zepbound can drive impressive weight loss, but stopping them is often followed by rapid weight regain. Researchers found that people regain weight faster after quitting these ...

Helping with Grandkids May Slow Cognitive Decline

Jan. 29, 2026 Helping care for grandchildren may offer an unexpected boost to brain health later in life. Researchers found that grandparents who provided childcare scored higher on memory and verbal skills than those who did not. The effect did not depend on how ...

Long-term Alcohol Use Linked to a Sharp Rise in Rectal Cancer

Jan. 29, 2026 Drinking heavily over many years is linked to a higher risk of colorectal cancer, especially rectal cancer, according to new research tracking U.S. adults for two decades. People who drank heavily throughout adulthood faced sharply higher risks than ...

Scientists Turn Tumor Immune Cells Into Cancer Killers

Jan. 28, 2026 Scientists at KAIST have found a way to turn a tumor’s own immune cells into powerful cancer fighters—right inside the body. Tumors are packed with macrophages, immune cells that should attack cancer but are usually silenced by the tumor ...

These Nanoparticles Could Destroy Disease Proteins Behind Dementia and Cancer

Jan. 28, 2026 Researchers have developed smart nanoparticles that can seek out and destroy disease-causing proteins the body can’t normally eliminate. Unlike traditional drugs, these particles can reach ...

The Hidden Reason Cancer Immunotherapy Often Fails

Jan. 28, 2026 Cancer immunotherapy has been a game-changer, but many tumors still find ways to slip past the immune system. New research reveals a hidden trick: cancer cells can package the immune-blocking protein PD-L1 into tiny particles that circulate through ...

Why Long COVID Brain Fog Seems so Much Worse in the U.S.

Jan. 28, 2026 A massive international study of more than 3,100 long COVID patients uncovered a striking divide in how brain-related symptoms are reported around the world. In the U.S., the vast majority of non-hospitalized patients described brain fog, ...

The Fat You Can’t See Could Be Shrinking Your Brain

Jan. 28, 2026 Where your body stores fat may matter just as much as how much you carry—especially for your brain. Using advanced MRI scans and data from nearly 26,000 people, researchers identified two surprising fat patterns tied to faster brain aging, ...

Tea Can Improve Your Health and Longevity, but How You Drink It Matters

Jan. 28, 2026 Drinking tea, particularly green tea, is linked to better heart health, improved metabolism, and lower risks of chronic diseases like diabetes and cancer. It may also help protect the brain and preserve muscle strength as people age. However, ...

New Review Finds Wild Blueberries Support Heart and Gut Health

Jan. 27, 2026 A sweeping scientific review highlights wild blueberries as a standout food for cardiometabolic health. The strongest evidence shows improvements in blood vessel function, with encouraging signs for blood pressure, cholesterol, blood sugar, gut ...

A Common Parasite in the Brain Is Far More Active Than We Thought

Jan. 27, 2026 A common parasite long thought to lie dormant is actually much more active and complex. Researchers found that Toxoplasma gondii cysts contain multiple parasite subtypes, not just one sleeping form. Some are primed to reactivate and cause disease, ...

Latest Headlines

updated 9:32am EST

Brain Cancer May Begin Years Before Doctors Can See It

Jan. 29, 2026 Scientists in South Korea have discovered that one of the most common malignant brain tumors in young adults may begin years before a tumor can be seen. IDH-mutant glioma, long treated by removing ...

This Discovery Could Let Bones Benefit from Exercise Without Moving

Jan. 27, 2026 Researchers have discovered a biological switch that explains why movement keeps bones strong. The protein senses physical activity and pushes bone marrow stem cells to build bone instead of storing ...

Scientists May Have Been Wrong About What Causes Asthma

Jan. 27, 2026 Asthma may not be driven by the molecules scientists have blamed for decades. Researchers have identified “pseudo leukotrienes,” inflammation-triggering compounds formed by uncontrolled ...

Keto Diet Weight Loss May Come With a Hidden Cost

Jan. 27, 2026 A long-term study found that while a ketogenic diet prevented weight gain, it also triggered major metabolic problems. Mice developed fatty liver disease, abnormal blood fats, and an impaired ability ...

Scientists Found a Survival Switch Inside Brain Cells

Jan. 27, 2026 Findings could create new opportunities to treat and study neurodegenerative diseasesScientists discovered that sugar metabolism plays a surprising role in whether injured neurons collapse or cling ...

These Common Food Preservatives May Be Linked to Cancer

Jan. 27, 2026 A large French study tracking more than 100,000 people over a decade has found that higher consumption of certain food preservatives—commonly found in processed foods and drinks—is linked to a ...

The Type of Carbs You Eat May Affect Dementia Risk

Jan. 27, 2026 Carbohydrates don’t just fuel the body—they may also influence how the brain ages. A large long-term study found that diets high in fast-acting carbs that rapidly raise blood sugar were linked to ...

Obesity and High Blood Pressure May Directly Cause Dementia

Jan. 26, 2026 A new genetic study suggests that obesity and high blood pressure may play a direct role in causing dementia, not just increasing the risk. By analyzing data from large populations in Denmark and the ...

Your Fireplace May Be Doing More Harm Than You Think

Jan. 26, 2026 Home fireplaces and wood stoves are quietly driving a large share of winter air pollution, even though only a small number of households rely on wood heat. Researchers found that wood smoke accounts ...

A Lost Disease Emerges from 5,500-Year-Old Human Remains

Jan. 26, 2026 A 5,500-year-old skeleton from Colombia has revealed the oldest known genome of the bacterium linked to syphilis and related diseases. The ancient strain doesn’t fit neatly into modern categories, ...

Why Chronic Gut Inflammation Can Turn Into Colon Cancer

Jan. 25, 2026 A newly uncovered immune chain reaction in the gut may explain why people with inflammatory bowel disease face a much higher risk of colorectal cancer. Researchers found that a powerful inflammatory ...

Scientists Just Cracked the Hidden Rules of Cancer Evolution

Jan. 26, 2026 Cancer doesn’t evolve by pure chaos. Scientists have developed a powerful new method that reveals the hidden rules guiding how cancer cells gain and lose whole chromosomes—massive genetic shifts ...

Scientists Exposed How Cancer Hides in Plain Sight

Jan. 24, 2026 Pancreatic cancer may evade the immune system using a clever molecular trick. Researchers found that the cancer-driving protein MYC also suppresses immune alarm signals, allowing tumors to grow ...

Chemotherapy Rewires Gut Bacteria to Block Metastasis

Jan. 23, 2026 Chemotherapy’s gut damage turns out to have a surprising upside. By changing nutrient availability in the intestine, it alters gut bacteria and increases levels of a microbial molecule that travels ...

The Hidden Health Impact of Growing Up With ADHD Traits

Jan. 24, 2026 A large, decades-long study suggests that signs of ADHD in childhood may have consequences that extend well beyond school and behavior. Researchers followed nearly 11,000 people from childhood into ...

Brain Waves Could Help Paralyzed Patients Move Again

Jan. 24, 2026 People with spinal cord injuries often lose movement even though their brains still send the right signals. Researchers tested whether EEG brain scans could capture those signals and reroute them to ...

A Common Vitamin Could Influence Bathroom Frequency

Jan. 22, 2026 Scientists studying genetic data from over a quarter million people have uncovered new clues about what controls how fast the gut moves. They identified multiple DNA regions linked to bowel movement ...

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 designed a new treatment that intercepts this harmful ...

Why Some People Get Bad Colds and Others Don’t

Jan. 22, 2026 Scientists found that nasal cells act as a first line of defense against the common cold, working together to block rhinovirus soon after infection. A fast antiviral response can stop the virus ...

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 of ...

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 ...

The Genetic Advantage That Helps Some People Stay Sharp for Life

Jan. 22, 2026 A new study reveals that super agers over 80 have a distinct genetic edge. They are much less likely to carry the gene most associated with Alzheimer’s risk, even when compared with other healthy ...

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. ...

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 ...

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 ...

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. ...

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 ...