ThinkTank
Joan Beal, Singer: Breath Work
May 2, 2020
Scientific information on why breath exercises calm anxiety:
Take a Deep Breath – The American Institute of Stress
Why Nitric Oxide Is So Important | Berkeley Wellness
Humming greatly increases nasal nitric oxide. – PubMed – NCBI
The Nobel Prize in Physiology or Medicine 1998 – NobelPrize.org
The Effect of Mirthful Laughter on the Human Cardiovascular System