This is a tremendously important book. I have been doing all of my eating in an 8-9 hour time period for the past several months and never feel hungry. While I had been familiar with Dr. Panda's work I never fully realized all of the implications that the circadian code had on overall health. To me, the chapter on how light from the computer screens, the tv and led lighting effects us was something that I had not been familiar with before but I had experienced the effects of dry eyes and difficulty falling asleep. The book is full of simple suggestions as to how we can mitigate these problems. I've already purchased several copies of the work and given them as gifts. It's not only loaded with information it's also written in a very readable and engaging way for everyone. There is a tremendous amount of research by Satchin Panda as well as others used in writing this book. The appendix contains 16 pages of citations from peer reviewed journals written by scientists from all over the world. I urge everyone to read it.