Part 2 The human voice: an instrument in residence
Breath trivia:
The diaphragm descends anywhere from 1.5 cm at rest to 6-10 cm during exercise.
There is no air going into the abdominals! The role of the abs is to relax and allow the thoracic cavity to be more spacious.
Breathing allows you to take in the oxygen and expel carbon-dioxide waste. But when you exhale, you also breathe out a lot of water. Humans exhale up to 0.59 fluid ounces of water per hour and about four times that amount during exercise.