Have you ever thought of yawning? Reason behind it? Let us have a clear knowledge view on it, Yawning can be because of inadequate sleep and tiredness, everybody yawns from newborn baby.
Why Do We Yawn?
To Old age person, it’s quite a natural instinct, yawning relives from stress and it’s irresistible. Even animals yawn. Medical science has its own terminology; yawning helps control levels of oxygen and carbon dioxide.
Another theory suggests that yawning stretches the lungs and its tissues. Stretching while yawning may be a way to flex muscles and joints, it increases heart rate, and feels more relax and awake.
Yawing is common mostly at afternoon after lunch and night time before sleep, as a person is away from sleep for longer duration. It is common we are bored or tired.
Why Do We Yawn When Tired?
Yawning is contagious. If you yawn the person next to you starts yawning, even thinking of yawning gets you a yawn. Some researchers have identified yawning to some chemical changes in brain that help trigger yawns. In an article published in the Journal of Pharmacology and Experimental Therapeutics, Dr. Collins, of the University of Texas, and fellow identified two types of brain receptors that turn yawning on and off. Yawning rates are found low in cool air-conditioned rooms than that of non air-conditioned rooms.
Why Do We Yawn When Someone Else Yawns?
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