2006-09-15 03:39:41 · 16 answers · asked by angelinyourdreams99_us 3 in Health ➔ Other - Health
its because your brain believes that, when someone else yawns, they are using up a lot of the oxygen in the surrounding air. therefore you also yawn, in an attempt to get some of the oxygen for yourself.
it doesnt really have a huge amount to do with being tired, although that triggers it at times.
hope this helps!
2006-09-15 10:20:30 · answer #1 · answered by clairelouise 4 · 0⤊ 0⤋
I read in a book that not only is contagious when you see it, when you hear someone talk about yawning you will feel like yawning too.
But yes, it is the need of the brain to get more oxygen but I don't know why is contagious.
Sorry.
2006-09-15 15:18:32 · answer #2 · answered by pinky 2 · 0⤊ 0⤋
I think it's contagious - I always yawn when I see someone else doing it. Even over the phone if I can hear a yawn, I'll so it.....
2006-09-15 12:00:01 · answer #3 · answered by Jens 1 · 0⤊ 0⤋
I couldn't really tell you, but what I can say is that yawning is not exactly a sign of being tired but when you yawn your brain is trying to get more oxygen.
2006-09-15 10:44:01 · answer #4 · answered by Anonymous · 0⤊ 0⤋
This is a great question. I wish I could answer it but alas. We yawn even if we are not tired but bored. I guess that if we are bored our brain is tired of the situation that we are in at the time and is telling us to get the hell out of it. I am sure that I will not get best answer for this but angelinyourdream should get bonus points for such a great question.
2006-09-15 10:57:03 · answer #5 · answered by David L 2 · 0⤊ 0⤋
It's because humans harbour a subconscious need to mimic each other; that's why if someone yawns next to you, you're very likely to yawn. This also works if someone near you begins scratching - you're more likely to start feeling itchy.
2006-09-15 10:41:55 · answer #6 · answered by squirrellondon 4 · 0⤊ 0⤋
Its because when you see someone yawn, your brain thinks that they are taking in all the oxygen and so you go into automatic yawn otherwise you will suffocate!
2006-09-15 10:44:44 · answer #7 · answered by spanishpaella 1 · 0⤊ 0⤋
its something to do with your subconsious self wanting to be like another. The reason for yawning is to let out the excess carbon dioxide and get in the neccesary amount of oxygen.
good luck
2006-09-15 10:52:18 · answer #8 · answered by paintball_freakk 1 · 0⤊ 0⤋
I agree awth Squirrell. Another trick I like to do when bored on the bus or in waiting rooms is to stare at a spot on the wall or ceiling, with a puzzled expression, occasionally turning my head to get a better look - you'd be surprised how many people get overcome with curiosity and have to look, too!!!
2006-09-15 10:50:35 · answer #9 · answered by sammi 6 · 0⤊ 0⤋
its connected to the amount of Carbon dioxide in the air,you should hardly ever yawn if your out in the fresh air.
2006-09-15 10:44:26 · answer #10 · answered by Alfred E. Newman 6 · 0⤊ 0⤋