The body is the most fascinating machine ever created, and nobody talks about it in ways that are as illuminating and compelling as Dr. Michael Roizen and Dr. Mehmet Oz do. In YOU: The Owner's Manual they showed us how bodies work in general, and in YOU: On a Diet, they explained how bodies lose weight and stay fit; both books have sold in the millions. Now, in YOU: Staying Young, the doctors are going to talk to you about what happens as your body ages. As with their previous books, they've conducted tireless research and will introduce fascinating and crucial information in an unforgettable way.

Most people think of the aging of our bodies the same way we think of the aging of our cars: The older we get, it's inevitable that we're going to break down—it could be in just a few ways or it could be in dozens of ways. Most of us hold this notion that once we reach 40 or so, we begin the slow and steady decline of our minds, our eyes, our ears, our joints, our arteries, our libido, and every other system that affects the quality of life (and how long we live it).

But according to Dr. Roizen and Dr. Oz, that's a mistake. Aging isn't a decline of our systems. It's actually very purposeful. The very systems and biological processes that age us are actually designed to help us when we're a little bit younger. So what's our role as part of the aging population? To learn how those systems work, so we can reprogram them to work the way they did when we were younger. Your goal should be: Die young at any age. That means you live a high quality of life (with everything from working joints to working genitals) until the day you die. Because the doctors' real goal isn't just to make you live longer; it's to allow you to maintain vibrancy throughout your entire life.