I was hoping for much more science-based, actionable information in this book. Use of the word ‘science’ in the title is misleading if you’re hoping for that. The author was part of a scientific study, and he shares his experience with that, but that’s where any notion of the scientific method ends.
Certainly a large take-away from this book is “breath through your nose” (albeit with only anecdotal support), but I already do, so that was of passing interest only to me. The rest of the book was superficial and anecdotal stories of a variety of breathing techniques and exercises - which, while interesting, lack the depth and background to be life-changing. Perhaps this is unsurprising, given the author is a journalist rather than a medical practitioner.
Overall, a disappointment.
My rating: ★★☆☆☆