Why do we yawn? Experts reveal WHY yawning is so contagious

Why do we yawn? Experts reveal WHY yawning is so contagious
 

A yawn is an involuntary reflex to have less oxygen in the body than people require.
Experts at the University of Nottingham have revealed the human propensity for contagious yawning is triggered by reflexes in the brain - an area called the motor cortex.
A study has shown the ability to resist yawning when someone near us yawns is not very strong.
Experts have also shown the urge to yawn is increased if we are told to resist yawning. Results have even revealed that by understanding why people yawn it could help reverse certain neural disorders, such as Tourette Syndrome.
Contagious yawning... read more

 
4 September 2017 in Health, Views: 39
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