To earn the vote he needed to become the nation’s top health official, Robert F. Kennedy Jr. made a special promise to a U.S.

All organisms in an ecosystem are interconnected, and any imbalance in this complex relationship can have irreversible consequences for both humans and ...

Researchers combined animal models, human brain tissue, and molecular analysis to uncover a connection between Alzheimer's ...

The nation’s health agencies were upended over the weekend by a confusing, slow-motion rollout of terminations that left staff worried about the future of various projects, including those to improve ...

A sponge-like implant in mice helped guide a treatment that slowed or stopped a degenerative condition similar to multiple sclerosis in humans. It also gave researchers a look at how primary ...