Does humming heal you via nitric oxide?
MixedClaim: "Humming heals — it boosts nitric oxide"
Humming reliably raises nasal nitric oxide approximately 15-fold — that part is solidly demonstrated. But the leap from "raises a molecule in the sinuses" to "heals you" is not supported. A 2024 trial found the nitric oxide boost did not improve cognition or emotional processing. The mechanism is real; the health benefit claim is unproven and worth testing honestly, not selling as fact.
Sources
- Humming & nasal nitric oxide: Weitzberg & Lundberg, Am. J. Respiratory & Critical Care Medicine (2002) 10.1164/rccm.200202-138BC
- 2024 trial: humming-induced NO did not improve cognition or emotional processing PubMed 38573928