Question

Why is yawning contagious???​

Answer 1

Answer:

It is contagious because when you see someone yawning your subconscious mind tell you to do the same.

Answer 2

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Contagious yawning is triggered involuntarily when we observe another person yawn -

➜- it is a common form of echophenomena --

➜the automatic imitation of another's words (echolalia) or actions (echopraxia).

➜And it's not just humans who have a propensity for contagious yawning -- chimpanzees and dogs do it too.