There were parts of the book that I was definitely skeptical of, and after doing some research, found were not supported by any studies that I could find. So I

There were parts of the book that I was definitely skeptical of, and after doing some research, found were not supported by any studies that I could find. So I will agree that you should remain skeptical about some claims... Really, you should be skeptical of anything you hear. But the fact that under sleeping has serious detrimental effects on your health is supported by many studies. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2845795/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2845795/ https://www.ncbi.nlm.nih.gov/pubmed/8621064 https://www.ncbi.nlm.nih.gov/pubmed/8621064 https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/486518 https://jamanetwork.com/journals/jamainternalmedicine/fullar... https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/410883 https://jamanetwork.com/journals/jamainternalmedicine/fullar... https://www.ncbi.nlm.nih.gov/pubmed/19109114 https://www.ncbi.nlm.nih.gov/pubmed/19109114 https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/414701 https://jamanetwork.com/journals/jamainternalmedicine/fullar... https://www.ncbi.nlm.nih.gov/pubmed/6878979 https://www.ncbi.nlm.nih.gov/pubmed/6878979 https://www.ahajournals.org/doi/full/10.1161/01.HYP.0000217362.34748.e0 https://www.ahajournals.org/doi/full/10.1161/01.HYP.00002173... There are so many studies out there about this, I don't see how you can deny this fact.