HOW WELL YOU AGE isn’t about luck or just good genes. Living longer—and staying strong, agile, wise, and on top of things while you’re at it—is actually about developing some strategies. You probably know about many of these already. Often what’s standing between understanding what to do and doing it is wondering how much each move really matters or what to do first. So here we bring you the numbers. Seeing exactly how much each longevity step “counts” toward a younger body and a longer life makes it clear that in a world where it’s hard to find an extra five minutes, a few little changes could end up buying you an extra five years.
“People have more control over aging than they think,” says Keith Roach, M.D. He’s an associate attending physician at NewYork-Presbyterian/Weill Cornell Medical Center, and he’s spent years poring over studies that show the extent to which your lifestyle can affect your body’s age. Along with Michael F. Roizen, M.D., chief
