The health secretary seemed stoic — maybe nervous, even — at the start of his first major trip. But on a hike with Navajo Nation leaders, he was finally in his element.

© Ash Ponders for The New York Times

The health secretary’s announcement came on the first day of a tour through the Southwest to showcase nutrition legislation and other priorities.

© Annie Rice/Associated Press

It is the first ruling in a case challenging “shield laws” intended to protect doctors in states that support abortion rights who send abortion pills to states with bans.

The findings showed the highest mortality occurred among infants who were Black, lived in Southern states or had fetal birth defects.

Scientists were slow to recognize that Covid spreads through the air. Some are now trying to get ahead of the bird flu.

A large study found that men lost seven years of life expectancy and women lost nine years, compared with counterparts without the disorder.

The positions of Robert F. Kennedy Jr. on vaccines and drug companies are well known. His approach to addiction has been far less scrutinized.

The government is expected to pay lower prices for Ozempic and Wegovy starting in 2027. The Trump administration will decide whether to expand coverage for millions of Americans.

A law that coaxed companies to lower the price of drugs came with a little-known consequence: smaller discounts for low-income health clinics.

Digital mental health platforms were supposed to expand access for the neediest patients. Researchers say that hasn’t happened.

By 2060, new dementia cases per year could double to one million because of the growing population of older Americans, a study predicts.

Variant Bio, a small biotech company based in Seattle, is using genetic information from Indigenous people to develop drugs for obesity and diabetes.

While cases are climbing in China, the situation is very different from what it was when Covid-19 emerged five years ago, medical experts say. HMPV has circulated in humans for decades.

But the report, on the experiences of 13 patients, found that the drug had no benefit for some people and that some who benefited said the improvement didn’t last.

Early intervention tries to rein in psychotic disorders before they can ruin young lives. For Kevin Lopez, everything is on the line.

In crowded Kinshasa, two strains of mpox are sweeping through a community that relies on selling sex. Hundreds of thousands of vaccines sent to the country have not been used.

A mutant gene is coming to steal Linde Jacobs’s mind. Can she find a way to stop it?