Mouth breathing or chest breathing. When you breath from your chest you take more breaths and if it is through your mouth you often over oxygenate. When breath

Mouth breathing or chest breathing. When you breath from your chest you take more breaths and if it is through your mouth you often over oxygenate. When breathing (normal) it's important to use the nose to both inhale and exhale. It helps regulate the amount of oxygen you take in (keeps your mouth from getting dry). You should also try to breath from your abdomen/stomach instead of your chest. Abdominal breathing creates a stronger respiratory system and core where chest breathing creates a weaker one (my observations).