I have found this book to be excellent, not only to start reading from front to back but also to be able to dip into about any particular medical subject. Despite feeling well and fit enough for my age, one of my worries was nevertheless to find out about the effect of eating as much chocolate as I do. For a few minutes I started to get worried Dr.Wilson hadn't addressed the subject until I found it under cocoa. All's well, apparently, so long as in moderation as ever! There is a great deal of research that has gone into producing this well written and informative book.