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Scientists gave worms magnetic bacteria. They lived 43% longer
A magnet-producing bacterium extended the average lifespan of C. elegans worms by more than 43% while helping protect their neurological and intestinal health. Researchers traced much of the effect to suppression of ferroptosis, a damaging form of cell death linked to iron buildup and oxidative…
Scientists discover an “impossible” cellular survival pathway that could help fight cancer
Scientists discovered a surprising backup system that lets mammalian cells make the essential amino acid cysteine even when the pathways once considered indispensable are disabled. The same survival mechanism may help cancer cells resist treatment, raising the possibility that shutting it down…
Scientists thought they knew how this 70-year-old leukemia drug worked
A 70-year-old leukemia drug is still revealing new secrets. Researchers found that removing a protein called NUDT5 protected cells from the drug, even though simply blocking the protein had little effect. The unexpected result points to a hidden cellular role that could help explain why people…
Aging muscles may be losing strength for a reason scientists missed
A newly identified breakdown in communication between nerves and muscles could help explain why people lose strength as they age. Researchers were able to improve muscle strength in an animal model by targeting a key protein, raising hopes that some age-related weakness could eventually be treated.
More REM sleep linked to lower risk of 83 diseases
A large study tracking more than 95,000 people suggests that how you sleep may be linked to your risk of developing dozens of diseases. People who spent more time in REM sleep had lower risks of 83 conditions, including dementia, heart failure, and Parkinson’s disease, while more deep sleep was…
GLP-1 weight loss and diabetes drugs linked to nutritional deficiencies in nearly 1 in 6 children
Children taking GLP-1 medications (such as Victoza, Saxenda, Trulicity, and Ozempic) for weight loss, prediabetes, or type 2 diabetes may face an overlooked risk: nutritional deficiencies. A new study found that nearly 1 in 6 young patients developed a diagnosed deficiency within a year of starting…
Rare pregnancy infections may triple the risk of autism
A major Swedish study of 3.7 million people has found that rare TORCH infections passed from a pregnant woman to the fetus are linked to much higher risks of autism and intellectual disability later in life. Children with a congenital TORCH infection were about three times more likely to be…
Breakthrough drug reverses skin aging and dramatically speeds healing
A topical drug that removes aging, damaged cells helped older mice heal skin wounds significantly faster. The treatment appeared to reactivate repair pathways involved in inflammation, collagen production, and new blood vessel growth.
This new drug could break cancer’s resistance to treatment
A new experimental drug called CS18 may help break through cancer drug resistance by disabling several of the defenses tumors use to survive treatment. It strengthened existing therapies, restored drug sensitivity in resistant lung cancer cells, and slowed tumor growth in animal models.
Coffee doesn’t have to keep you awake to disrupt your sleep
Caffeine may make sleep less restorative even when you fall asleep normally and stay in bed for eight hours, with EEG recordings revealing fewer of the slow brain waves associated with deep sleep. Individual sensitivity varies dramatically, meaning even caffeine consumed earlier in the day could…
This emerging treatment could help people avoid knee replacement surgery
A minimally invasive procedure called genicular artery embolization could offer a new middle ground between conservative treatments and knee replacement for osteoarthritis. By blocking tiny blood vessels associated with inflammation, GAE can significantly reduce pain, with some patients reporting…
Brain scans reveal a possible cause of long COVID fatigue and brain fog
Researchers have found evidence that long COVID may damage dopamine releasing neurons in the brain, potentially explaining persistent fatigue, low motivation, slowed movement, and memory difficulties. The discovery could lead to new treatments that target the brain's dopamine system.
Stem cells reverse stroke damage and restore movement in mice
Stem cell transplants helped regenerate stroke-damaged brain tissue in mice, producing new neurons and restoring lost motor function. The treatment also improved blood vessels, inflammation, and the blood-brain barrier, raising hopes that a similar approach could eventually help repair the human…
Stopping Ozempic may raise heart attack and stroke risk
A large study suggests the cardiovascular benefits of GLP-1 drugs such as Ozempic, Wegovy, Mounjaro, and Zepbound can disappear surprisingly quickly when treatment stops. After two years off the medications, patients had a 22% higher risk of heart attack, stroke, and death compared with those who…
Scientists create a needle-thin brain implant that can do three jobs at once
A new needle-thin brain implant can record neural activity, deliver drugs, and stimulate multiple brain regions using a single flexible fiber. Successful tests in mice suggest it could give scientists a more precise, less invasive way to study the brain and may eventually help treat neurological…
Chronic stress may be quietly reshaping your heart
Chronic inflammation tied to stress, lifestyle, mental health, and socioeconomic conditions may silently change the heart for years before any symptoms appear. People with the highest inflammation levels faced a 43% greater risk of heart attack and stroke, raising hopes that earlier testing and…
Stanford scientists discover the human brain may actually be two separate organs
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 also allowed researchers to grow human hindbrain neurons in the lab, opening new possibilities for…
Millions take calcium and vitamin D for bone health. A major review finds little benefit
A sweeping review of more than 153,000 adults found that calcium and vitamin D supplements, alone or together, do little to prevent fractures or falls in most older people. Researchers say the findings challenge routine supplementation for prevention and point instead toward strategies such as…
8 common food additives linked to high blood pressure and heart disease
Common preservatives hiding in processed foods may carry unexpected heart risks, with heavy consumption linked to substantially higher rates of high blood pressure and cardiovascular disease. Researchers identified eight widely used preservatives associated with hypertension, although the…
Ancient DNA reveals how plague kept returning for 400 years after the Black Death
Ancient DNA reveals that plague repeatedly returned to Europe for more than 400 years after the Black Death, evolving into new lineages and spreading through trade, migration, and war. Researchers also developed a method to date ancient plague genomes more precisely, linking many of them to…
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