do u yawn? are u sleepy when u yawn? can u control yourself? do u yawn when u're NOT sleepy?

sometimes, i yawn even when i'm not tired. elwyn read from a book, saying that when u yawn when u're not sleepy, it means that u need more oxygen. mich says that when u yawn, u're trying to take in more oxygen. how true is this?

in conclusion, take in DEEP breathes and u will never yawn again.