"Work" has two overloaded meanings here. It might `work` in the sense that it causes the practitioners feel better, without the biochemistry `working` as hypot

"Work" has two overloaded meanings here. It might `work` in the sense that it causes the practitioners feel better, without the biochemistry `working` as hypothesized. Indeed, the author points out that many of the practices are pretty close to more traditional mindfulness/sleep hygiene recommendations anyway.