Worth knowing
Self-improvement, <em>graded honestly</em>.
Every entry says what to do, why it works, where it fails, and how you would know. Each one carries a rating for how good the evidence actually is — including the ones rated as not working at all, which are here so you can stop spending effort on them.
Strong
Replicated across multiple good trials or meta-analyses.
Moderate
Real support, but smaller effects or fewer replications than you would want.
Contested
Researchers actively disagree. Included because the disagreement is worth knowing.
Thin
Plausible and widely repeated, but not properly tested. Judge it yourself.
Debunked
Tested and failed. Here so you can stop spending effort on it.
45 practices
Habits
Strong