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Strengthening the body's natural daily rhythms helped mice recover after stroke by improving the brain's waste-clearing system and reducing lingering inflammation. The approach worked even when treatment began three days after the stroke, suggesting ...

Measurements of ancient light from the cosmic microwave background suggest that the universe is remarkably flat. But that does not prove it is infinite, because the observable cosmos could be only a small patch of a much larger curved universe. Space ...

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 in mice dramatically reduced neurodegeneration and . ...

A large health-record analysis found that glucosamine use was associated with a 25% higher likelihood of mild cognitive impairment progressing to dementia. Lab experiments suggest the popular joint supplement may intensify an abnormal sugar-tagging . ...

A single dose of an experimental CRISPR therapy cut LDL cholesterol and triglycerides by about half in patients with difficult-to-treat lipid disorders. The reductions were still present one year later, with the highest dose lowering LDL by 52.5% and ...

Scientists have streamlined a method for measuring DNA-bound phosphorus in soil, making it cheaper and easier while preserving its accuracy. The technique could reveal how soil microbes help recycle phosphorus and ultimately support more sustainable ...

Scientists studying ancient Australian rocks uncovered more than 12,000 fossils from some of the oldest known eukaryotes on Earth. These early complex cells lived in settings ranging from coastal mudflats to the open sea, but only where oxygen was .. ...

Pain and fatigue in rheumatoid arthritis can persist even after inflammation improves, with depression, poor sleep, obesity, smoking, and chronic pain potentially helping sustain symptoms. Researchers say identifying these hidden drivers could ...

Ancient DNA shows that adults and children buried together in medieval Sweden were often not members of the same immediate family, suggesting that burial choices reflected more than biological kinship. The research also revealed early gender-based .. ...

Scientists have mapped the genetics of cat cancer on an unprecedented scale and found surprising similarities with tumors in humans. The findings could help bring precision cancer treatments to cats while also revealing new clues about how human ...