Editing Buteyko method (section)

=== Nasal breathing ===

The Buteyko method emphasizes the importance of nasal breathing, which protects the airways by humidifying, warming, and cleaning the air entering the lungs.  Many asthmatics have problems sleeping at night, and this is thought by Buteyko practitioners to be linked with poor posture and/or [[mouth breathing]]. By keeping the nose clear and encouraging nasal breathing during the day, night-time symptoms can also improve.  Strictly nasal breathing during physical exercise is another key element of the Buteyko method.<ref name="aus17" />