Karen Weintraub

Since he was a child, James Peyer has been obsessed with stopping aging. Now he has a fund — and a plan.

Research on aging treatments keeps turning up profound variations in how male and female subjects respond.

A new study helps the case for a supplement known as NR, but it’s not yet a slam dunk.

Stem cells are overhyped as a cure for everything. But they’re finally showing promise in making elderly people stronger.

Nobel laureates and billionaires fight to sell you what they hope is a longevity pill.

These people are all researching ways to halt or reverse aging. So what are they doing to help themselves live longer?