The Rolling Stones (now in their 60s) have sung to us for years about what a drag it is getting old, but it doesn't have to be that way. Despite living in a youth-oriented society, many of the aged patients seen by Dr. Levine have kept their emotional zest, intellectual zeal, and empowering dignity. Levine points out well-known public figures who are clearly aging with dignity and vitality. The neurologist author shows steps we can take to age while retaining these qualities, defying a society that challenges this quest. Living longer is not enough for most of us: we don't want to just...