Once you understand the significance of nose breathing, you will be able to add more benefits to the list. Dr. John Douillard claims that nose breathing enhances deep breathing in which the diaphragm contracts and increases the cavities of the lungs. Because the majority of the blood is located at the bottom of the lungs, more oxygen will be absorbed into the blood. The slower release of air through the nostrils will keep air in the lungs for a longer period of time, furthering the absorption of oxygen. With more effective breathing, the heart rate is reduced, less stress is placed on the heart, greater stamina, and rapid recovery from sport activities.
Mouth breathers are tongue thrusters and have poor tongue coordination.
In tongue thrusting, the tongue pushes against the back of the teeth during swallowing. Abnormal swallowing patterns cause major problems in the cranio-facial development in children. Many of my colleagues in orthodontics have known for years that there was a direct relationship between the degree of mouth breathing and the severity of the malocclusion. Unbeknownst to me was the magnitude of health issues that were associated with incorrect breathing. Incorrect breathing has affected almost every facet of our society.