Did you know that we have pulmonary vagal irritant receptors? Irritant receptors lie between airway epithelial cells and are stimulated by noxious gases, cold, and inhaled dusts. Once activated, they send action potentials via the vagus nerve leading to bronchoconstriction (which can lead to cough) and increased respiratory rate. When stretched, these receptors also increase production of pulmonary surfactant, which allows our alveoli in the lungs to be more flexible and compliant. Our treatment, when these irritant receptors are activated is supplemental oxygen and airway clearance. You can do this yourself! Just take a long, deep, deliberate breath – right now! That brings in more oxygen into your lungs (supplemental oxygen), and helps to clear your airway with the prolonged exhalation.

Keep your pulmonary system healthy, avoid cough, and your vagus nerve toned during these times in the pandemic with this technique of slow, diaphragmatic breathing. Keeping the pulmonary vagal irritant receptors inactivated and at rest!