Health & Medicine News

December 29, 2025

Top Headlines

ADHD Drugs Don’t Work the Way We Thought

Dec. 29, 2025 ADHD stimulants appear to work less by sharpening focus and more by waking up the brain. Brain scans revealed that these medications activate reward and alertness systems, helping children stay interested in tasks they would normally avoid. The ...

Mini Brains Reveal Clear Brain Signals of Schizophrenia and Bipolar Disorder

Dec. 28, 2025 Tiny lab-grown brains are offering an unprecedented look at how schizophrenia and bipolar disorder disrupt neural activity. Researchers found distinct electrical firing patterns that could identify ...

Losing Weight in Midlife May Have a Hidden Brain Cost

Dec. 28, 2025 Weight loss restored healthy metabolism in both young and mid-aged mice, but the brain told a different story. In mid-aged animals, slimming down actually worsened inflammation in a brain region tied to appetite and energy balance. While this ...

A Massive Scientific Review Put Alternative Autism Therapies to the Test

Dec. 28, 2025 A major new review has put hundreds of alternative autism treatments under the microscope—and most didn’t hold up. Scientists analyzed decades of research and found little reliable evidence that popular approaches like probiotics, acupuncture, ...

Stanford Scientists Uncover Why MRNA COVID Vaccines Can Trigger Heart Inflammation

Dec. 27, 2025 Stanford scientists have uncovered how mRNA COVID-19 vaccines can very rarely trigger heart inflammation in young men — and how that risk might be reduced. They found that the vaccines can spark a ...

A Rare Cancer-fighting Plant Compound Has Finally Been Decoded

Dec. 27, 2025 UBC Okanagan researchers have uncovered how plants create mitraphylline, a rare natural compound linked to anti-cancer effects. By identifying two key enzymes that shape and twist molecules into their final form, the team solved a puzzle that had ...

Cancer Cells Depend on a Dangerous DNA Repair Trick

Dec. 27, 2025 Researchers have discovered how cells activate a last-resort DNA repair system when severe damage strikes. When genetic tangles overwhelm normal repair pathways, cells flip on a fast but error-prone emergency fix that helps them survive. Some cancer ...

Eating More Vitamin C Can Physically Change Your Skin

Dec. 26, 2025 Vitamin C doesn’t just belong in skincare products—it works even better when you eat it. Scientists discovered that vitamin C from food travels through the bloodstream into every layer of the skin, boosting collagen and skin renewal. People who ...

This Common Food Ingredient May Shape a Child’s Health for Life

Dec. 26, 2025 Scientists discovered that common food emulsifiers consumed by mother mice altered their offspring’s gut microbiome from the very first weeks of life. These changes interfered with normal immune system training, leading to long-term inflammation. ...

A Surprising Brain Cleanup Reduced Epileptic Seizures and Restored Memory

Dec. 25, 2025 A new study suggests temporal lobe epilepsy may be linked to early aging of certain brain cells. When researchers removed these aging cells in mice, seizures dropped, memory improved, and some animals avoided epilepsy altogether. The treatment used ...

Dec. 25, 2025 Tramadol, a popular opioid often seen as a “safer” painkiller, may not live up to its reputation. A large analysis of clinical trials found that while it does reduce chronic pain, the relief is modest—so small that many patients likely ...

Scientists Found a Way to Restore Brain Blood Flow in Dementia

Dec. 25, 2025 A new study suggests that dementia may be driven in part by faulty blood flow in the brain. Researchers found that losing a key lipid causes blood vessels to become overactive, disrupting circulation and starving brain tissue. When the missing ...

Latest Headlines

updated 12:42am EST

Scientists Reverse Alzheimer’s in Mice and Restore Memory

Dec. 24, 2025 Alzheimer’s has long been considered irreversible, but new research challenges that assumption. Scientists discovered that severe drops in the brain’s energy supply help drive the disease—and ...

This Tiny Peptide Could Help Stop Brain Damage After Injury

Dec. 24, 2025 A four–amino acid peptide called CAQK has shown powerful brain-protective effects in animal models of traumatic brain injury. Delivered through a standard IV, it zeroes in on injured brain tissue, ...

These Nanoparticles Kill Cancer Cells While Sparing Healthy Ones

Dec. 24, 2025 Researchers have created tiny metal-based particles that push cancer cells over the edge while leaving healthy cells mostly unharmed. The particles work by increasing internal stress in cancer cells ...

Your Roommate’s Genes May Be Shaping Your Gut Bacteria

Dec. 23, 2025 Scientists studying thousands of rats discovered that gut bacteria are shaped by both personal genetics and the genetics of social partners. Some genes promote certain microbes that can spread ...

MIT Scientists Strip Cancer of Its Sugar Shield

Dec. 23, 2025 Scientists at MIT and Stanford have unveiled a promising new way to help the immune system recognize and attack cancer cells more effectively. Their strategy targets a hidden “off switch” that ...

Scientists Find a Weak Spot in Deadly Fungus That Shut Down Hospital Intensive Care Units

Dec. 23, 2025 A deadly hospital fungus that resists nearly every antifungal drug may have an unexpected weakness. Researchers discovered that Candida auris ...

This Ultra-Sensitive Imaging System Can Spot Cancer Earlier

Dec. 23, 2025 A new imaging technology can distinguish cancerous tissue from healthy cells by detecting ultra-weak light signals. It relies on nanoparticles that bind to tumor markers, making cancerous areas ...

This Cancer-Fighting Molecule Took 50 Years to Build

Dec. 22, 2025 MIT scientists have achieved the first-ever lab synthesis of verticillin A, a complex fungal compound discovered in 1970. Its delicate structure stalled chemists for decades, despite differing from ...

A New Drug Could Stop Alzheimer’s Before Memory Loss Begins

Dec. 22, 2025 New research suggests Alzheimer’s may start far earlier than previously thought, driven by a hidden toxic protein in the brain. Scientists found that an experimental drug, NU-9, blocks this early ...

Why One Long Walk May Be Better Than Many Short Ones

Dec. 22, 2025 How you walk may matter just as much as how much you walk. A large UK study tracking more than 33,000 low-activity adults found that people who grouped their daily steps into longer, uninterrupted ...

A New Tool Is Revealing the Invisible Networks Inside Cancer

Dec. 21, 2025 Spanish researchers have created a powerful new open-source tool that helps uncover the hidden genetic networks driving cancer. Called RNACOREX, the software can analyze thousands of molecular ...

An 11-Year-Old Needed Two New Organs and Doctors Made History

Dec. 19, 2025 In a rare and historic achievement, Children’s Hospital Colorado successfully completed its first dual heart and liver transplant in a pediatric patient. The life-saving surgery was performed on ...

Deaths of Despair Were Rising Long Before Opioids

Dec. 20, 2025 Long before opioids flooded communities, something else was quietly changing—and it may have helped set the stage for today’s crisis. A new study finds that as church attendance dropped among ...

The 98% Mystery: Scientists Just Cracked the Code on “junk DNA” Linked to Alzheimer’s

Dec. 19, 2025 Researchers have revealed that so-called “junk DNA” contains powerful switches that help control brain cells linked to Alzheimer’s disease. By experimentally testing nearly 1,000 DNA switches ...

Study Links Full-Fat Cheese to Lower Dementia Risk

Dec. 21, 2025 Eating full-fat cheese and cream may be associated with a lower risk of dementia, according to a large study that tracked people for more than 25 years. Those who consumed higher amounts of these ...

Parkinson’s Breakthrough Changes What We Know About Dopamine

Dec. 22, 2025 A new study shows dopamine isn’t the brain’s movement “gas pedal” after all. Instead of setting speed or strength, it quietly enables movement in the background, much like oil in an engine. ...

The Gear Meant to Protect Firefighters May Carry Hidden Dangers

Dec. 18, 2025 Firefighter turnout gear is designed to shield first responders from extreme heat and danger, but new research suggests it may also introduce chemical exposures. A U.S. study found that brominated ...

A Hidden T Cell Switch Could Make Cancer Immunotherapy Work for More People

Dec. 18, 2025 Scientists have discovered that T cell receptors activate through a hidden spring-like motion that had never been seen before. This breakthrough may help explain why immunotherapy works for some ...

AI Detects Cancer but It’s Also Reading Who You Are

Dec. 17, 2025 AI tools designed to diagnose cancer from tissue samples are quietly learning more than just disease patterns. New research shows these systems can infer patient demographics from pathology slides, ...

This Tiny Protein Helps Control How Hungry You Feel

Dec. 17, 2025 Researchers have identified a previously overlooked protein that helps regulate appetite and energy use in the body. This “helper” protein supports a key system that decides whether the body ...

Neurons Aren’t Supposed to Regrow but These Ones Brought Back Vision

Dec. 19, 2025 After injury, the visual system can recover by growing new neural connections rather than replacing lost cells. Researchers found that surviving eye cells formed extra branches that restored ...

AI Learns to Decode the Diseases Written in Your DNA

Dec. 16, 2025 A newly developed AI can predict which diseases specific genetic mutations are likely to cause, not just whether they are harmful. The breakthrough could speed up diagnoses and open new paths for ...

AI Found a Way to Stop a Virus Before It Enters Cells

Dec. 15, 2025 Researchers discovered a hidden molecular “switch” that herpes viruses rely on to invade cells. By combining AI, simulations, and lab experiments, they identified and altered a single amino acid ...

Cannabis Compounds Show Unexpected Power Against Ovarian Cancer

Dec. 15, 2025 Scientists have discovered that key compounds from cannabis—CBD and THC—show surprisingly strong effects against ovarian cancer cells. Used together, they slow cell growth, reduce colony ...

Is a Vegan Diet Safe for Kids? A Huge Study Has Answers

Dec. 21, 2025 A major new meta-analysis finds that vegetarian and vegan diets can support healthy growth in children when properly planned. Kids on plant-based diets often had better heart health markers, ...

Indoor Tanning Triples Melanoma Risk and Seeds Broad DNA Mutations

Dec. 15, 2025 Researchers discovered that tanning beds cause widespread, mutation-laden DNA damage across almost all skin, explaining the sharply increased melanoma risk. Single-cell genomic analysis revealed ...

Stem Cell Pain Sponge Soaks Up Osteoarthritis Joint Pain and Protects Cartilage

Dec. 15, 2025 SereNeuro Therapeutics revealed promising results for SN101, a first-in-class iPSC-derived therapy designed to treat chronic osteoarthritis pain while protecting joint tissue. Instead of blocking ...

Stressed Rats Keep Returning to Cannabis and Scientists Know Why

Dec. 11, 2025 Rats with naturally high stress levels were far more likely to self-administer cannabis when given access. Behavioral testing showed that baseline stress hormones were the strongest predictor of ...

Even Moderate Drinking Carries a Bigger Cancer Risk Than You Think

Dec. 11, 2025 Researchers found that both how often and how much someone drinks significantly shape their cancer risk, even at moderate levels. Vulnerability varies across groups, with genetics, socioeconomic ...

A Traditional Brazilian Plant Shows Unexpected Strength Against Arthritis

Dec. 22, 2025 A Brazilian study has confirmed that Joseph’s Coat, a plant used for generations in folk medicine, can significantly reduce inflammation and arthritis symptoms in lab tests. Researchers observed ...