I watched a special program about the study of yawning and from start to finish I did not yawn. Does that mean I'm a bitch? Anyway, I do not think that this is related to MBTI type, but I'm bored.Yawning may reveal more about a person than their boredom threshold, according to research.
A susceptibility to contagious yawning may actually be a sign of a high-level of social empathy.
Although many species yawn, only some humans and possibly their close animal relatives find yawning infectious, suggesting the reason is psychological.
The University of Leeds research was presented at the British Association's Festival of Science in York.