Whenever we feel drowsy or sleepy, we start yawning. Does yawning help us in any way?
ScienceClass 7CBSEAnswered 27 Mar 2026
Answer
Soln:
When we feel sleepy, the rate of respiration slows down. Because of this, lungs will not get enough oxygen and we yawn. Yawning brings extra oxygen to the lungs and helps us in being awake.
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