Here are the things that your own doctor would tell you if she had the time to have a real talk. Most people know that sooner or later, we all begin to grow old: gray hairs show up, eyesight fades, familiar names draw a blank, and crow's feet sneak in at the edges of our eyes. How Aging Works: What Science Can Do About It is a book for adults of all ages that explains what to do about these and other age-related changes. To a certain extent, aging...