Over several days at high altitude, your body adjusts to the lower amount of oxygen in the air. (alpacaexpeditions.com)
Over time, we become better able to breathe more deeply, providing increased amounts of oxygen to power our muscles and other metabolic processes. (personalizedchiropractic.com)
Taking deep breaths through both the nose and mouth will allow your body to deliver the maximum amount of oxygen possible to your body, fast! (fitbodyhq.com)