you are not breathing deeply enough so as a reflex to low but not lifethreatiningly low O2 levels yer body takes in more O2.
yes when you are tired and your body is trying to stay awake it yawns
It's common sese man!
1 yawn means you are tired. 2 yawns means you need a nap. 3 yawns means you need to go to sleep.
your body yawns because it needs more oxygen, when we get tired that's when the body gets low on oxygen
I don't know about "drowsy" but I have heard that if someone near you yawns, you yawn too. Like yawns are contagious. Yawns don't mean that you're tired. It also means that you're not getting enough oxygen, but that has not been scientifically tested.
A dog is like a human , it yawns when it is tired or about to go to sleep! :D It also yawns as a sign of disapproval, or when it is stressed, and needs to calm itself down.
yes when you are tired and your body is trying to stay awake it yawns
It's common sese man!
It's common sese man!
1 yawn means you are tired. 2 yawns means you need a nap. 3 yawns means you need to go to sleep.
your body yawns because it needs more oxygen, when we get tired that's when the body gets low on oxygen
Yes they do. Our pup yawns all the time. She must be tired from her day of laying around, eating, and chasing her tail.
I don't know about "drowsy" but I have heard that if someone near you yawns, you yawn too. Like yawns are contagious. Yawns don't mean that you're tired. It also means that you're not getting enough oxygen, but that has not been scientifically tested.
Actually that is a lie. Yawns are contagious.
Yawns are caused by a combination of factors, including fatigue, boredom, and changes in brain temperature. When we yawn, it is thought to help regulate brain activity and increase oxygen intake, but the exact reason for why we yawn is not fully understood.
No.
yes, yawns are contagious and you can go to science.howstuffworks.com/life/contagious-yawn.htm