Editor's Note: This post was originally published April 2013 and has recently been updated and revised for accuracy and comprehensiveness.
Aging is the natural process of growing older. Yet there are many factors that play a role in whether we age gracefully or if we are the one out of two people who age faster than our biological age.
More than half of us look older than we really are because we either engage in behaviors that increase our aging, or we do not actively support a more youthful body through inaction. Knowledge is power, and the more you know about how to avoid premature aging, the more control you can take toward maintaining a healthier, younger body and mind.