why are yawns contageous?

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2006-08-09 14:51:27 · 3 answers · asked by Anonymous in Health ➔ Other - Health

It's psychological but it's very real.

2006-08-09 15:20:14 · answer #1 · answered by Neil S 4 · 0⤊ 0⤋

not sure
i think it has something to do with when u see someone yawning it reminds u that ur tired as well

2006-08-09 21:56:47 · answer #2 · answered by fuzzycakes 5 · 0⤊ 0⤋

Reflex. Think of one and you may yawn then!

2006-08-09 22:04:46 · answer #3 · answered by whoknew 4 · 0⤊ 0⤋