Question

what is breathing rate? Why does it vary​

Answer 1

Answer:

Breathing mostly occurs automatically, which means a person does not have to think about it. Sometimes, the body needs to adjust the breathing rate. Receptors in the brain detect low oxygen or high carbon dioxide and send signals to the body, which can change the breathing rate.

Answer 2

Breathing mostly occurs automatically, which means a person does not have to think about it. Sometimes, the body needs to adjust the breathing rate. Receptors in the brain detect low oxygen or high carbon dioxide and send signals to the body, which can change the breathing rate.