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Psychology

Why yawns spread from person to person

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Yawning is the ultimate subconscious vibe check. Contagious yawning is completely unrelated to how tired you are; it is actually a biological marker of social empathy. Psychopaths and individuals with certain antisocial traits are statistically immune to catching yawns, meaning your sleepy coworker is at least capable of love.

Why yawns spread from person to person
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