Question

Why do we yawn after seeing someone yawning?

Answer 1

Answer:

About half of adults yawn after someone else yawns due to a universal phenomenon called “contagious yawning.” Contrary to popular belief, a new study from Duke University suggests that contagious yawning is not strongly related to variables like empathy, tiredness, or energy levels.

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Answer 2

Its Actually a coincident but if put in scientific term then we get that this occurs due to Over concentration on anything or unsally thinking also because of Lack of Sleep!