yAwN!

Assalamualikum & Salam Sejahtera.

.sedikit perkongsian fakta.

What a yawn (menguap) is.?

Yawning is an involuntary action that causes us to open our mouths wide and breathe in deeply. We know it's involuntary because we do it even before we are born.hehe.

When we are bored or tired, we just don't breathe as deeply as we usually do. As this theory goes, our bodies take in less oxygen because our breathing has slowed. Therefore, yawning helps us bring more oxygen into the blood and move more carbon dioxide out of the blood.

try this little experiment: 

Take a big yawn, cover your mouth out of courtesy, and watch and see how many people yawn. There's a good chance that you'll set off a chain reaction of yawns. Before you finish reading this fact of the day, it's likely that you will yawn at least once. Don't misunderstand, I'm not intending to bore you, but just reading about yawning will make you yawn, just as seeing or hearing someone else yawn makes us yawn.