Thank you for sharing, this was an interesting read. I wonder if the rest of the book also suffers from this.

To be fair though (not that it excuses it) but pop-science/livestyle book written by academics to gain more notoriety usually suffer from this issue that a lot could be fixed by doing X. Livespan by David Sinclair also does this by basically pinning everything on aging.

It makes for a good read but I think it's best to always keep a healthy skepticism.