We are all aging, but we all seem to do it at different rates. For instance, one friend might pass for a decade younger and another, well, let’s just say, may present somewhat older than their chronological age. So, what’s going on? Sure, genetics plays a role but to a large degree, as the research of the past decade has made plain, the aging process is driven by metabolism. When our metabolism is working the way nature intended it to, we’re on track to live hale and hearty lives into our 80s and maybe beyond. When it’s not, metabolism becomes the driver –often the main one – behind the classic “diseases of aging” – that can rob you of countless good years as you age.