The New York Times

Volatile relationships, reckless impulsivity and an unstable identity are hallmarks of this misunderstood mental health condition.

The kea gained fame for learning to use a pebble to groom himself. Scientists were astounded by his next innovation.

With shortages of medical professionals and an aging population, thousands of community health care workers prevent older adults from falling through the cracks.

An upcoming executive order is intended to accelerate research into the compounds’ efficacy in treating PTSD, depression and other mental health problems, officials said.

The numbers are the first to quantify the effect of the Trump administration’s shutdown and restarting of a program that has saved millions of lives worldwide.

A chemist, she lent her expertise in drug research to ACT UP, an organization known for its street protests, and helped accelerate the approval of H.I.V. and AIDS treatments.

Researchers at the University of Pittsburgh gave transplant recipients certain immune cells from their organ donors. It didn’t always work.

On top of the daily toll of treating patients, the show’s medical providers bring their own scars to the E.R.

Dr. Erica Schwartz is seen as a highly qualified traditional choice and tapping her is the strongest signal yet that the administration is veering away from vaccine skepticism this election year.

Robert F. Kennedy Jr. is expected to defend staff and funding cuts at the Health and Human Services Department he oversees.

The review said a certain class of drugs had little clinical benefit, but many Alzheimer’s experts criticized the analysis, saying it unfairly lumped failed drugs with two recently approved treatments.

Some researchers hold that evolution hasn’t much altered humans in the past 10,000 years. A new analysis of ancient DNA indicates that natural selection continued to shape hundreds of genes.