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Longevity research is booming. Scientists are looking for ways to target the basic biology of aging. And here's the exciting part: Our biological age appears to be malleable.

Health officials argue the protection of the COVID vaccine booster wanes over time and say some people need a second booster. But other infectious disease experts say three shots are enough for now.

President Trump needs Congress' permission to use D.C.'s police for over 30 days, but there are no such limits on its National Guard. Experts spoke to NPR about how the takeover could end.

Chess is seeing a global resurgence, sparked by The Queen's Gambit and the pandemic impact on leisure time. India is an emerging power player, with 85 grandmasters and intense chess schools for youth.

NPR's Mary Louise Kelly talks with Jillian Bell, of the new movie Brittany Runs A Marathon, about relating to her character's journey and making a movie that deals with weight without being cliche.

The U.N. says October saw the highest number of Israeli settler attacks on Palestinians in nearly 20 years of tracking that violence. More than half the attacks targeted olive harvesters.

Ohio lawmakers have introduced a bill to legalize the sale of raw milk to consumers. The Ohio Dairy Producers Association opposes it.

Firms like Function Health and Oura market regular blood tests to people wanting to take their health into their own hands. The process often raises more questions for patients than it can answer.

In the past three months, 2 million Palestinians have been internally displaced by war. Some far-right Israeli officials want them to leave Gaza altogether — evoking the trauma of past displacement.

With gasoline prices averaging above $4 a gallon nationally, drivers are grappling with a sharp rise in fuel costs. Here are some ideas to consider if you're trying to cut your fuel costs.