Between 1920 and 2020, the average human life span doubled. How did we do it? Science mattered—but so did activism.

Pat Gallant-Charette is 68. She’s on a quest to beat marathon swimming’s globe-spanning challenge.

The legendary artist has radically upended his distinctive style of portraiture—and his entire life. Why?

Andrea Duke is 36. She began running marathons competitively two years ago. She’s already qualified for the Olympic Trials.