Things I learned: extremes are unhealthy, no matter which end of the dietary or exercise spectrum you try. Genetics are a key factor in longevity, as is an active mind and body. Some people have far more endurance for suffering than I do. Be wary of self-proclaimed experts. The author's long suffering wife deserves her own special trophy as she appears to be married to a neurotic basket case. By the end of the book, I was glad to leave him.