is yawning contagious?
September 18, 2008 6:59am CST
im very sorry, but my last post with name "is snoring contagious?" is wrong.. this is the right one.. my public apology.. is yawning contagious or it is just a urban legend? i've seen people who yawn and sometimes i yawn too.. it is really contagious maybe in psychological matters? I need your feedbacks... its my survey.. thanks..