There aren't really any surprises in this book. Exercise is essential. However, the authors are so knowledgeable and funny and the facts about aging are so scary if we glide into it sitting on our behinds, I bought this book (the men's version) for my husband, 2 30+ sons and son-in-law and my daughter and daughter-in-law (the women's version) as a Christmas gift. I included a pedometer and heart-rate monitor. A gift of health. What could be better?