Is Yawning Contagious? If So, Why?

[Little Red Wagon Repairman]

Why when somebody yawns do I and other people also yawn? Is the sight of someone yawning suggestive to our brains or is there something gassy secreted from the mouth that gets into our system causing us to yawn?

 

[knowone]

I don't know why but it does seem to be contagious. Mythbusters did a segment on it, and watching it I definitely had the urge to go to bed with Kari Byron.

 

[assari]

When someone yawns I fall sleep

I don't know why but it does seem to be contagious. Mythbusters did a segment on it, and watching it I definitely had the urge to go to bed with Kari Byron.

In Finland Kari is a man's name!

 

[Mr. Daystar]

It does seem to be. Even after a good nights sleep, If I see my wife yawn, I'll do the same. Maybe it has scientific reality...so what was the result on Myth Busters? Or did you just kind of loose yourself in some weird fantasy that involved Kari?

 

[Ivy Adams]

I swear I only read the title of this thread and it made me yawn. I'm curious to what the result on Myth Busters was also!

 

[GodsEmbryo]

 

[wdoall]

it is all psychological. Physiologically speaking a yawn is the body's urge to expel excessive carbon monoxide from its lungs, so it takes a big breath to help exchange the air. when you get tired your breath per minute rate slows and that's why you have a tendency of yawning when you get tired

 

[Jack Davenport]

I need a nap.

 

[Little Red Wagon Repairman]

I swear I only read the title of this thread and it made me yawn. I'm curious to what the result on Myth Busters was also!

With my 2 threads about running water and yawning I hope you didn't make tee-tee in bed. Apologies in advance if you're wringing out the sheets.

 

[Little Red Wagon Repairman]

Thank you. I plan on watching those.

I was in bed with the wife last night. I looked directly at her when she yawned and couldn't fight the urge to also yawn.

 

[Antonella Kahllo]

I just read the title of this thread and I start yawning :dunno: