Oral rinses and sputum from 771 patients hospitalized with Covid-19 revealed lopsided microbial communities in the worst long Covid cases, with extra lactic acid producers. Whether those shifts predate infection remains unknown.
Adults with chronic low back pain showed higher blood flow in two midline brain regions during a flare-provoking leg raise, but the study had no pain-free comparison group and tested no treatment.
In one 16-year-old with highly superior autobiographical memory, unbidden memories of his past made up 87% of his stray thoughts in a dull lab task, against 39% in 36 comparison adults. One case cannot say why.
Mechanically squeezing an animal’s shinbone released proteins into the bloodstream that calmed neuroinflammation, cut neuron loss and nearly quadrupled survival after severe head trauma in mice.
A peer-reviewed analysis of nearly 700,000 federal contracts finds cancellations under Trump’s cost-cutting initiative fell hardest on counties that gave him the weakest support in 2024, even after accounting for population, income and prior federal spending.
Late ballot rejections nearly doubled in counties whose post offices lost their afternoon truck, a Brookings analysis of three states’ 2026 primaries finds, and voters there can offset the delay by mailing a few days early.
A 40-year Finnish study links a higher BMI in adolescence with a faster DNA-based pace of aging decades later. Genetics sharpen the signal, but the study also reveals why that does not make teenage weight a simple, standalone cause.
Stevens Neuroimaging Institute researchers built a brain scan measure that lines up blood flow with cell density layer by layer, revealing regions whose mitochondria run at higher capacity, a clue that could eventually help flag disease.
A meta-analysis of 45 studies links short bursts of fine particulate air pollution, and months of elevated nitrogen dioxide, with higher odds of death by suicide, adding pollution to the shrinking list of modifiable risk factors researchers can act on.
Transplanting a small number of aging cells into young mice can trigger frailty and, in one study, memory loss, a new review argues, while some people born with unusually high mutation rates age completely normally.
Bacteria scooped from an ordinary compost heap outperformed relatives collected from a Kenyan landfill, a tropical zoo, and insect guts at breaking down two of the hardest plastics to recycle.
Thirteen attempted out-of-body sessions in Brazil produced no correspondence between what volunteers described and a hidden target, but two of them accurately described researchers working behind a closed, unseen door.