Habitual overbreathing involves breathing more air than your body requires during rest and exercise. Overbreathing leads to: • A reduction of the gas carbon dioxide in the blood • Mouth breathing and underutilization of the gas nitric oxide • Impaired release of oxygen from red blood cells (see the Bohr Effect.) • Constriction of the smooth muscle in the blood vessels and airways • Adverse effects on blood pH • Reduced oxygenation of working muscles and organs, including the heart and brain • Increased acidity
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