Most Common Natural Human Instincts

Sunday, Jul 10, 2022, 11:15 am
By:Tony Williams


#10 Yawning



Yawning has been said to be an instinct to create an abundance of oxygen in the body, when cabon dioxide increases in the blood. This can happen when you are stressed, or tired. Yawning also stretches the tongue and throat, which are two of the most overworked muscles in the body.


Yawning-Most Common Natural Human Instincts
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