We breath an incredible 22,000 times a day! For something that we do so many times in a single day not many of us know what is actually involved in just one breath. Take a closer look at the respiratory system and what is involved in each of those breaths.
Every part of your body needs oxygen from the air you breathe in order to survive. The lungs are designed to absorb oxygen from the air and transfer it into the bloodstream.
The breathing centre in the brain is constantly receiving signals from the body about the amount of oxygen which is needed. This will depend on how active you are. When you are asleep you will need far less oxygen than when you are running to catch a bus. When you are asleep you will breathe more slowly and when you are running you will breathe more quickly.
The delicate structure of the lungs is beautifully adapted to carry out the complex business of breathing and, at the same time, helps protect the body from outside attack. Most of the time we are not even aware that our lungs are working, but they can be damaged in many ways and become less efficient at taking oxygen from the air and getting rid of waste carbon dioxide.