there is why are yawns contagiousIs there a scientific reason why yawning is contagious?

I've always wondered if yawning is contagious for a scientific reason - if not, why?
Yes! We yawn because our bodies need more oxygen.And when we see someone else yawn it tells our body it needs more oxygen. Yawning does not necessary mean you're tire. Even though this is associated with yawning. We could yawn because we are excited about something and we are trying to stay alert. Like when you're in a lecture hall listening to someone talking. People start to yawn. It's associated with being bored. But the fact is your body needs more oxygen to stay alert.
you dont yawn for oxygen.

seconded, oxygen has no place in this

No, the nature of yawthere is why are yawns contagiousning is still pretty much unexplored scientifically. It is known that yawning itself is linked to raising the level of consumed oxygen in a way to stimulate the work of your organism. Yawning is often caused by a change in activity - like waking up or going to sleep. Nevertheless there's no scientific explanation for yawning being contagious.
yeah, I saw it on the DISCOVery channel, but I can't remember what it was, the point is there is a reason for it
yawning is contagious, but here is an interesting fact for you, kind hearted or loving people will copy a yawn more often then a self involved person
it's only psychological.
Yes, lack of oxygen forces you to yawn and take in more oxygen. When you do that there is less oxygen for the rest of thethere is why are yawns contagious people in the room. They are forced to yawn to take in more oxygen as well.
Scientists still don't know for sure exactly we yawn, so why it is contagious is a far shot... There may be some theories you read online, but frankly, no one's too sure.
I don't know how scientific this is, but the power of suggestion is pretty strong. I think that this is what is happening.
It is not scientific,but in real life it has been proved of lots of people!
as far as i know..yes it is contagious n there surely is a scientific reason behind it!
u see humans have this tendency to find out a scientific reason for every action!!so dont surprised to know the so called scientific reason.




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