The term mouth-breather generally correlates with someone who isn’t very smart.
But there may be more to the moniker than its use as an insult.
You may feel lower on oxygen or experience dryness throughout your mouth; it even impacts your sleep.
Nose-breathing stimulates the lower part of the lungs which helps to send more oxygen throughout the bloodstream.
The opposite is true when you breathe through your mouth.
It may take time to get used to nasal breathing more frequently, but the payoff is worth it.
