Small effectiveness: 0.33 What is Holotropic Breathwork? 1. Conscious control of breathing is meant to influence a person's mental, emotional and/or physical state 2. Includes rebirthing-breathwork: 1970s therapy claims to release suppressed traumatic childhood memories. Evidence: 0.20 no effect: did not change personality temperament (Miller & Nielsen, 2015) 0.30 small effect: decreased hostility (Miller & Nielsen, 2015) 0.20 no … Continue reading Holotropic Breathwork: Small Effectiveness