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If I Yawn, Does That Mean I Am Tired?

Yawning can be caused by several factors besides sleepiness. A classic symptom of fatigue, yawning can sometimes be a sign that your body is ready for sleep. It’s a common occurrence: Animals yawn, babies yawn, and adults yawn. But a yawn is not necessarily a sign that you are tired—check out these other potential causes. 1. Monkey See, Monkey Do. The act of yawning is contagious. If you see someone yawn or read about yawning, you might do it yourself. This involuntary imitation may be related to the evolutionary history of yawning. A nonverbal cue that says it is time to relax, the trait may have been selected over time because it helps people coordinate their…