To limit breathing through the mouth, each person tries a number of preventive measures at home: practice breathing in and out of the nose, keep the nose clean, relieve stress so as not to pant with your mouth, use a larger pillow to rest your head when you sleep, exercise.
During intense exercise, the nose is blocked due to a cold, then you should breathe through your mouth to get air into the lungs.
According to experts, nasal breathing has more benefits than breathing through the mouth by helping to humidify the inhaled air.
During breathing, the nose releases nitric oxide (NO).
NO is a vasodilator, which expands blood vessels.
This can help improve oxygen circulation in the body.
The mouth usually does not do this, which is why some people who breathe through their mouths often wake up with dry mouth or sore throat.
Small hair-like structures called cilia in the nose filter out poison, debris when breathing.
The nose can smell toxic substances in the air or food.
The mouth can not find these poisons effectively.
Healthy people use both nose and mouth to breathe.
According to experts, the only time when it is really necessary to breathe through the mouth is during intense exercise or if the nose is blocked due to a cold or allergy.
At this time, breathing through the mouth temporarily can help to get air into the lungs faster.
