Approachable Combination Of Science And Self-Help. This book is exactly what I said in the title – an approachable combination of the hard science (explained in such a way that anyone with a roughly high school education should be able to follow along reasonably well enough) and practical self-help type recommendations showing just how much sleep and the circadian rhythm affect virtually everything about the human mind and body, even down to things we may not associate with them such as cardiovascular troubles or the effectiveness of cancer treatments. It doesn’t hurt that includes one of my favorite short jokes at the beginning of one of the chapters as well. 🙂 Clocking in at around 29% bibliography, the narrative here uses a sequential numbering system for its footnotes that I distinctly remember was at least approaching – and may have surpassed – 600 individual citations. It also has an almost “FAQ” section at the end of each chapter, briefly answering common questions the author has encountered about the ideas discussed in that specific chapter. An excellent book for anyone seeking information about this topic, particularly those who may have questions about how sleep and circadian rhythms could potentially be affecting their own health. Very much recommended.