Studies become stories. Findings become rules. Conditions and caveats fall away, and by the time an idea reaches a book, a podcast, or a post, it often bears only a passing resemblance to the original research.

This book examines 99 of the most widely shared ideas in popular psychology and gives each one a straight verdict: Has Evidence, Overstated, Oversimplified, or No Evidence. The aim is not to dismiss these ideas, but to show what the evidence actually supports, and what you can reasonably rely on as true.