Serena Williams is back competing after years away from the tennis court. What lessons can the rest of us learn from that?

Mona Khalil died Friday after an Israeli airstrike hit her beachside home two weeks ago. She's credited with creating a conservation movement in southern Lebanon to protect sea turtle nesting grounds.

As millions gather for the World Cup, a scrappy public health operation led by a team at Georgetown is tracking disease threats using surveys, wastewater and online chatter to spot outbreaks early.

NPR's Ayesha Rascoe talks to Washington Post journalist Richard Sima about how fathers' brains change after bringing home a new baby.

Men are traditionally thought of as providers for their children. But a report that interviewed thousands of fathers found them embracing another role.

These simple movements combine speed and strength to train your body's ability to rapidly generate force. They can also help prevent injury and boost agility.

Why do some butterflies live for months while others survive only weeks? Tufts University researcher Jessica Foley explains what Heliconius butterflies can teach us about aging.

A flu outbreak at a Texas Air Force Base is fueling debate over the Pentagon's decision to end the military's flu vaccine mandate. Former military health official Jose Sanchez explains the stakes.

The Justice Department's opinion challenges civil rights protections that have long treated the institutionalization of disabled Americans as a last resort.

Loons, beloved American waterbirds, face threats from climate change and pollution. An oil spill settlement funds a new phone app helping non-scientists to aid research on these birds.