Longevity topic

by Joanna Plucinska

by Health.com

by Jeffrey Kluger

by TIME Photo

by Alexandra Sifferlin

by Mandy Oaklander

by Dr. Dean Ornish

by Justin Worland

by Alexandra Sifferlin

by Nancy Gibbs

by Justin Worland

by Laura Carstensen

by Alice Park

by Jeffrey Kluger

by Alice Park