Mighty mitochondria — those little factories inside our cells that generate energy — play a central role in our metabolism, our vitality and our well-being. Find out how to rev your cellular engines, rid them of the gunk and damage that slows them down, and start feeling your healthy best.
You work out, watch what you eat, and lead a healthy lifestyle — so you've probably got plenty to be proud of already. Yet you don't have to be a hardcore bodybuilder to want (and get) a little more visual pump in your physique. In order to find out exactly what it takes, we talked to the patron saint of hard-gainers, three-time Mr. Olympia, Frank Zane.