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 effect: did not change interpersonal problems (Miller & Nielsen, 2015)
0.40 small to moderate effect: reduced overly accommodating behaviors (Miller & Nielsen, 2015)
0.40 small to moderate effect: reduced intrusiveness/neediness (Miller & Nielsen, 2015)
Miller, T., & Nielsen, L. (2015). Measure of significance of holotropic breathwork in the development of self-awareness. The Journal Of Alternative And Complementary Medicine, 21(12), 796-803. doi:10.1089/acm.2014.0297
How To Therapy 