Does Yawning a lot Qualify as 'Deep Breathing'?

Answer 1

The process of Yawning IS a deep breath.

Yawning is caused when the bodies metabolism slows down because it is tired and so it is taking in less oxygen. Unless the person is resting and so using less energy then the tired person will yawn, as an attempt to get more oxygen into their bloodstream.

Answer 2

No. You yawn once cause your body needs it, Deep breathing is done purposely, and repeated,for a few minutes at least.

Answer 3

I say yes. I could fill up a truck tire when I exhale from a yawn.