Why do we all humans need to breathe ??
Every part of your body needs oxygen to survive.By breathing we are getting the oxygen
Everyday functions of the body like digesting your food, moving your muscles or even just thinking, need oxygen. When these processes happen, carbon dioxide is produced as a waste product. The job of your lungs in this system is to provide these processes with oxygen and to get rid of the waste gas, carbon dioxide.
Your brain constantly gets signals from your body which detect the amount of oxygen and carbon dioxide in your blood.
Your brain will send signals to the muscles involved in breathing and adjust your breathing rate depending on how active you are.
When you’re active, your breathing can increase up to about 40-60 times a minute to cope with the extra demand. The delivery of oxygen to your muscles also speeds up, so they can do their job efficiently. The increase in your breathing also makes sure there’s no build-up of carbon dioxide in your bloodstream.