Question

(b) What do you mean by breathing rate? How is breathing related to yawning? (1m)

Answer 1

Answer:

Breathing rates of below 12 or above 20 can mean a disruption in normal breathing processes. ... In some cases, a high or low respiratory rate is due to an activity, such as exercise, and is not an ...

Explanation:

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Answer 2

Answer:

One is that when we are bored or tired, we just don't breathe as deeply as we usually do. As this theory goes, our bodies take in less oxygen because our breathing has slowed. Therefore, yawning helps us bring more oxygen into the blood and move more carbon dioxide out of the blood

Explanation: