why do i always need to yawn after hearing or seeing somebody else yawn?

Answer 1

The yawn reflex is often described as contagious: if one person yawns, this will cause another person to "sympathetically" yawn.[2] The reasons for this are unclear; however, recent research suggests that yawning might be a herd instinct.[3] Other theories suggest that the yawn serves to synchronize mood behavior among gregarious animals, similar to the howling of the wolf pack during a full moon. It signals tiredness to other members of the group in order to synchronize sleeping patterns and periods of activity. It
can serve as a warning in displaying large, canine teeth. This phenomenon has been observed among various primates. The threat gesture is a way of maintaining order in the primates' social structure. The contagion of yawning is interspecific (i.e., try yawning in front of your dog). Yawning in public is generally regarded as impolite in the West, but came into fashion in polite French society for a brief period in the late 18th century. Oddly, sometimes sympathetic yawning may be caused by simply looking at a picture of a person or animal yawning, or even seeing the word "yawn".

This is an excerpt from the fool article posted on wikipedia dot com.: http://en.wikipedia.org/wiki/Yawn . I guess that 9 years of internet gave results :)

Answer 2

That is an AWESOME question I would like to know this myself...I even do it if i hear someone yawn over the phone. Crazy.

Answer 3

i do not imagine that is infantile in any respect. Lot's of folk get concepts from others. this can be a lifeless ringer for seeing an upload for some thing on television, liking the seem of it, and then paying for it.

Answer 4

nice question homie i would like to know that too cuz i do that when ever i see someone yawn hopefully someone would answer this ! ! !

Answer 5

that is such a stupid question because deep down you are tired

Answer 6

Nobody knows. No-one........ DOH!!!!!