yes because I've done it before with my mom and my Friend in the car. First i yawned then my mom because i was sitting in the front seat, then my Friend yawned so yes yawning is contagious.
yes Smallpox is very Contageous.
no
no
no
Yawning is not a disease.
if rude and yawning are defined as such i don't see any reason why the act of yawning be rude. yawning is physiologic. would urinating and defecating be rude also?
The spelling of the yawning sound is "yawn."
Yes
it is a contageous fungus
The cause in not know.
Yawning too much can prove to be fatal. My aunt didn't sleep for a week, kept yawning, and died. You're in trouble
It is VERY contageous.