The author of 'The Forever Strong Playbook' breaks down the real secret to longevity.

Add Yahoo as a preferred source to see more of our stories on Google. Dr. Gabrielle Lyon, author of "The Forever Strong Playbook," shares how to prepare your mind and body for the future and ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." If your social media feed looks anything like mine, you're likely bombarded on the daily by posts touting ...