One of the biggest factors that determines how well you age is not your genes but how well you live. Not convinced? Luck and genetics play roles in longevity, of course, but you can't control that. To hike your odds of hitting 100, focus on what you can do, like loading up on fruits and veggies (add five years), working out five days a week (add two to four years), and cutting down on stress (may add up to six years). Dr. Simon Yu will go over these topics and other helpful tips to Healthy Living to 100. All ages.