4 facts about yawning..
Nobody knows why we yawn exactly. It is semi pleasurable and can be slightly embarrassing when it hits you in the middle of a conversation or presentation.
Excessive yawning might not always be a sign of sleep deprivation- in some cases it has been a sign to heart problems, and even brain issues.
Even a Fetus can Yawn- in other words non fully developed
The average yawn lasts 6 seconds.
Actually, yawning is contagious. Just thinking about yawning is contagious.. It has been hard just writing this (4 yawns so far).
You are probably about to, or just have yawned while reading this. I'm on 5 now
Excessive yawning might not always be a sign of sleep deprivation- in some cases it has been a sign to heart problems, and even brain issues.
Even a Fetus can Yawn- in other words non fully developed
The average yawn lasts 6 seconds.
Actually, yawning is contagious. Just thinking about yawning is contagious.. It has been hard just writing this (4 yawns so far).
You are probably about to, or just have yawned while reading this. I'm on 5 now
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