HUMAN NUTRITION

Detailed explanation-1: -There are two air passageways to your lungs-your mouth, and your nose-and healthy people use both to breathe. During strenuous exercise, you may breathe through your mouth to help oxygen get to your muscles faster, but consistent mouth breathing (particularly when sleeping) can lead to various health issues.

Detailed explanation-2: -Mouth breathing causes A more common cause of mouth breathing is an obstructed airway, which can happen when you come down with an ailment that causes nasal congestion. Other causes of nasal congestion include enlarged tonsils or adenoids, nasal polyps, enlarged turbinates, and a deviated septum.