Yawning is contagious. Even thinking about yawning is enough. After reading this, there is a fifty percent chance you will yawn.
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Weird Psychological Facts
Acakpsy·chol·o·gy sīˈkäləjē/ noun the scientific study of the human mind and its functions, especially those affecting behavior in a given context.
LXXX.
Yawning is contagious. Even thinking about yawning is enough. After reading this, there is a fifty percent chance you will yawn.
