What is the purpose of breathing?
The purpose of breathing is to transport life-giving oxygen to the cells throughout your body. When you breathe, your lungs take in oxygen from the air, transport it to the circulatory system which then distributes this to the cells throughout your body. At the same time, carbon dioxide, which is a waste gas, is transported from your blood to your lungs and expelled from your body when you exhale. This is called gas exchange, and it is vital to sustaining life and maintaining good health.
The main muscles that control the movement of breathing is the diaphragm, the intercostal muscles (the muscles between your ribs) and the abdominal muscles. If you feel stressed, these muscles contract and cause the breathing to become shallow which can make feelings of stress or anxiety even worse.
Even though the stress response can be involuntary, you can get back in control of this response through your breathing. By being mindful of your breathing, you can ease and alleviate symptoms of stress and anxiety.