voluntarily hold the breath to the point of cyanosis. The spells, ranging in duration from a few up to forty seconds, cease as the child grows older, rarely persisting after four or five years of ...

Facebook page MEDspiration posted footage of an air hose being used to inflate dead sheep and cow lungs, to give an example of how rapidly the lungs expand when humans take a deep breath.

This typically causes symptoms like: coughing spells that bring up mucus or phlegm ... This test measures how much air you exhale. You take deep breaths into a tube that a computer monitors ...

When we get stressed or angry our breathing pattern changes. It becomes short, fast-paced and irregular. In such situations the first thing we are generally asked to do is, "Take a deep breath".