[Barrin92]

Even if he was a trained psychologist I'd be skeptical. The guy who wrote Why We Sleep is, if I recall correctly both a neuroscientist and psychologist and turns out the work was riddled with factual errors to the point of being virtually useless.

There's a lot of sounds sort of correct but has no scientific basis type stuff being published in the public intellectual / life advice genre, probably not surprisingly. Especially all the 'dopamine detox' lingo should set alarm bells off as it is essentially modern day bloodletting.