Health News

Health The brain’s gatekeepers Differences in neuronal activation in mice with intact immune cells called regulatory T cells or Tregs...

Health How exactly does ketamine work? New research offers insight. Marc Duque Ramírez in the lab. Photos by Grace DuVal...

Health New study maps the ‘dental deserts’ in the U.S. — and there are lots of them Harvard research shows...

Health Now that we have new ‘miracle’ diet drugs, what’s the point of exercising? Getty Images Anna Lamb Harvard Staff...

Health Death, destruction — and trauma — of L.A. wildfires Malibu home destroyed in the Palisades wildfire outside Los Angeles....

Health Aha moment in psych class clarifies childhood mystery Niles Singer/Harvard Staff Photographer Samantha Laine Perfas Harvard Staff Writer January...

Stephanie Mitchell/Harvard Staff Photographer Health Should we be panicked about bird flu? William Hanage says not yet. But he warns...

Landon Hughes, lead author on the study. Health Gender-affirming care rare among U.S. youth, study says Fewer than 1 in...

Health Nature offers novel approach to oral wound care Slug’s sticky mucus inspiration behind adhesive hydrogel that can seal wounds...

Health Time for a rethink of colonoscopy guidelines? Mingyang Song. Stephanie Mitchell/Harvard Staff Photographer Alvin Powell Harvard Staff Writer December...