There is no correct reason for this or how to avoid them. Another fact is they are unavoidable and no one can really control the reflexes of the body. So yawning is unavoidable similar to other things.
Yarning is nothing but a signal of sleep. Before sleep we feel sleepy like you open our mouth and some reflections of air come out [/quote]
Oh Ok! So you mean Yawning here(with a W), that's the correct spelling and not yarning - yarn means a thread that is woven into a cloth so I was confused about the whole discussion here! Please be careful with the spellings or it becomes difficult to understand what is being said! :)
"I am free of all prejudice. I hate everyone equally." - W. C. Fields :)
