Asked in Health
When do humen breth anaenrobically and What is happens?
November 26, 2008 3:12AM
Humans never breathe anaerobically. Respiration in cells can occur without adequate oxygen, but lactic acid builds up as a byproduct, and can be destructive. This is why your muscles ache after exercise. After you stop, heavy breathing increases oxygen which in turn breaks down the lactic acid, restoring equilibrium.