Nasal Breathing

Nasal breathing is a key stress regulator. Slow, regular nasal breathing interrupts the panic-stress cycle. Nasal breathing preserves enough carbon dioxide for hemoglobin to bind oxygen at full capacity and deliver it to cells. Nasal breathing is considered preferable because the nose conditions inhaled air. Nasal breathing provides filtration and protective functions that reduce pathogen entry and improve inhaled air quality compared with mouth breathing. Nose breathing is physiologically superior to mouth breathing because it filters, humidifies, and warms incoming air. Nasal breathing increases oxygenation by about 20% compared with equivalent mouth breaths. Nasal breathing retains more CO2, which paradoxically delivers more oxygen to tissues. Calm and full relaxation can restore airway patency when physical intervention such as the Heimlich maneuver fails. Nasal breathing can help with falling asleep quickly when stressed. Nasal breathing during sleep is associated with improved sleep quality. The nasal breathing principle stands in direct contrast to the common belief that large deep breaths are beneficial before stressful events. A sensation resembling congestion or the begi…