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Researchers found that ancient hominids--including early humans--were exposed to lead throughout childhood, leaving chemical traces in fossil teeth. Experiments suggest this exposure may have driven genetic changes that strengthened language-related ...

A newly recognized set of T helper cells seems to guard against aging by eliminating harmful senescent cells. Their presence in supercentenarians suggests they may be a key to maintaining a healthier, age-balanced immune system.

Chimps may revise their beliefs in surprisingly human-like ways. Experiments showed they switched choices when presented with stronger clues, demonstrating flexible reasoning. Computational modeling confirmed these decisions weren't just instinct. .. ...

Scientists found that people who use both cannabis and tobacco show a distinct brain pattern tied to mood and stress regulation. Their scans revealed higher levels of an enzyme that reduces a natural feel-good molecule in the brain. This imbalance .. ...

Researchers found that tau proteins don't jump straight into forming Alzheimer's-associated fibrils--first they assemble into soft, reversible clusters. When the clusters were dissolved, fibril growth was almost entirely suppressed. This reveals a .. ...

Scientists identified a small molecule that interrupts a harmful protein pair linked to diabetic inflammation and tissue damage. The compound helped wounds heal faster and reduced organ stress in both Type 1 and Type 2 diabetes models. Unlike typical ...

By reactivating a long-lost gene, researchers were able to lower uric acid levels and stop damaging fat accumulation in human liver models. The breakthrough hints at a future where gout and several metabolic diseases could be prevented at the genetic ...

Researchers uncovered how fatty molecules called ceramides trigger acute kidney injury by damaging the mitochondria that power kidney cells. By altering ceramide metabolism or using a new drug candidate, the team was able to protect mitochondrial ...

Researchers have created a prediction method that comes startlingly close to real-world results. It works by aiming for strong alignment with actual values rather than simply reducing mistakes. Tests on medical and health data showed it often ...

Exercise appears to spark a whole-body anti-aging cascade, and scientists have now mapped out how it happens--and how a simple oral compound can mimic it. By following volunteers through rest, intense workouts, and endurance training, researchers ...