jaylenhill30 jaylenhill30
  • 25-06-2017
  • English
contestada

When you start yawning widely you know it's time to get your rest

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TwixCPA8
TwixCPA8 TwixCPA8
  • 25-06-2017
Not necessarily. I yawn when I'm tired, and whenever someone else yawns. Yawning is contagious.
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monicatowa8
monicatowa8 monicatowa8
  • 25-06-2017
Not exactly. Some people yawn when they wake up (I do). Sometimes, people just yawn because they just yawn. Yawning doen't scientifically mean you NEED to sleep during that time. 
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