In crisis?Call or text 988 · Call 911 for immediate danger

See all crisis resources →
All resources

Daily Practices · Breathwork

Breathwork — what the evidence actually supports

Harvard Health on the breathing practices that have real autonomic effects, separated from the ones that don't.

Harvard Health Publishing5 min read

Slow, paced breathing — especially with extended exhalation — produces measurable parasympathetic activation and reduced subjective stress. The mechanism is real, the effect is modest, and the practice is free.

Harvard Health's short overview is a useful filter against the larger market of breathwork content that promises substantially more than the underlying research supports.

Open at Harvard Health Publishing

Mental Hum's library is a curated index of authoritative third-party resources. The summary above is our own framing; the full information lives at the source.

A note on this article

Mental Hum publishes general education, not medical advice. If something here reflects your own experience, please consider speaking to a clinician. If you are in crisis, call or text 988.