Question

what cause yawning and why is it occurs

Answer 1

hi mate ❤️❤️❤️❤️❤️

Yawning is a mostly involuntary process of opening the mouth and breathing in deeply, filling the lungs with air. It is a very natural response to being tired. In fact, yawning is usually triggered by sleepiness or fatigue.

Answer 2

Yawning is caused usually when you see or hear someone yawning near you. Yawning shows that your brain is not getting enough oxygen. It also occurs when you feel sleepy.

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