I Must Not Know How to Yawn

According to Piero Salzarulo, a professor of psychology in Florence, Italy, a yawn "gives a sense of well-being comparable to an orgasm." Even more, on a pleasure scale of 1 to 10 a yawn rates an 8.5 according to a study done by Robert Provine, professor of psychology, at the University of Maryland. Well, that leads me to only one conclusion: I don't know how to yawn. I mean, if yawning is comparable to an orgasm, I would be doing it all the time! However, the faces of people yawning and having an orgasm sure do look similar.