Worried that you'll never have a six-pack now that you have kids? This is the program for you.

CORY GREGORY HAS many titles: coach, company owner, cover guy—but most importantly, dad. He’s a father of three to Alex, Madelyn, and Anden, and husband to wife Rachael. So how does Gregory continue ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." AS A DAD, your workout window is short—so you might not be able to fit everything you want to do in every ...