Research on disease, treatment, and what keeps people well. Coverage runs from lab findings and clinical trials to public health, nutrition, and the health care system.
Stanford scientists genetically stripped mouse pups of most of their cortex, then filled the gap with human stem cell derived brain tissue that wired into the mouse’s nervous system and reached its spinal cord.
Mouse experiments testing rapamycin, acarbose and calorie restriction turned up twelve shared molecular changes marking a slow-aging body, potentially letting researchers screen new anti-aging drugs in months rather than years.
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.
College students who prepare and drink from a jug of mixed liquor, sold online as a party staple, log alcohol totals far beyond an ordinary night out, and most say the risks will not stop them.
A trial adding the drug lumateperone to a faltering antidepressant improved patients’ sexual function, but most of that improvement traced back to eased depression symptoms rather than any direct effect on desire, arousal or orgasm.
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.
Blood pressure, not brain scans, best predicted which patients cleared a key Alzheimer’s biomarker fastest after starting lecanemab, a Korea University study of 153 patients found, months before cognitive scores showed any difference.
A Stanford trial found teens and young adults rated social media health warnings, already mandated in four states, more discouraging than platforms’ own screen-time nudges, though perceived persuasiveness doesn’t guarantee anyone actually logs off.
Ovariectomised mice given a cancer therapy built more trabecular structure and lost body weight within eight weeks, hinting one molecule might address two separate consequences of menopause at once.
A urine-derived bacterium converted DHEA (dehydroepiandrosterone) into testosterone in culture, and structural modeling showed how one unusually flexible enzyme could carry out multiple steps in the pathway.
Mice bred with tau pathology and Alzheimer’s genetics lost their brain-damaging immune response when researchers deleted a scarce class of dendritic cells that operates entirely in lymph nodes outside the brain.