We can not breathe through the mouth. Inhale through the nose, out through your mouth, but only to
the respiratory system of ordinary people to take just 10-14 minutes to
the use of oxygen by the lungs for up to 5 liters, expanding the lungs to breathe through the abdomen to cause. the malfunction of the lungs
when we breathe, the lungs expand, the diaphragm will ensue.
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