The High 5 Habit

Mel Robbins is a genuinely warm communicator and the daily mirror habit is simple enough that many readers actually do it — which counts for something. But the neuroscience underpinning the central promise is lightly sourced and contested, and a book built around a single gesture stretches noticeably thin before the last page. If the habit sounds appealing, try it for free in the shower before spending money on the book.