Mouth Breathing is a Primary Cause for Snoring
Source: Snore Lab
Mouth breathing is a primary cause for snoring, nasal breathing not only lowers your snoring risk, but has other benefits too. Nasal breathing warms and humidifies incoming air, helping to prevent your airways drying out. It also channels air over your snoring noise-makers in a far less turbulent way than mouth breathing does.
Nasal Breathing Reduces Snoring
Source: Raj C. Dedhia, MD, MSCR, assistant professor, Otolaryngology/HNS & Sleep Medicine, at Emory University Hospital report:
So how does nasal breathing relate to snoring? Dedhia says breathing through your nose is actually the optimal way to breathe during sleep.
“Mouth breathing has a couple of problematic effects on the course of the airflow,” he says. “When you breathe through your mouth, your jaw tends to fall back, which causes your tongue to fall back, and even your palates are relaxed more.
That combo makes it more likely for the patient to have an obstruction. When the airflow goes through the mouth and hits that back wall, there isn’t a smooth transition like there is in the back of the nose. So there’s more turbulence that can generate snoring sounds.”