Our Brain send msg to our mouth that it needs rest and want to sleep nd as a result we Yawn .
because your sleepy too.
Yes, it is common for people to feel sleepy or have the urge to yawn when they see or hear someone else yawn. This is known as contagious yawning and it happens due to the activation of mirror neurons in the brain, which mimic another person's action, in this case yawning. Contagious yawning is believed to be related to empathy and social bonding.
You yawn when you are sleepy because that is when you take in the least oxygen. Your body takes in more oxygen when you are yawning, which explains the reason to why you take in air when you yawn.
no cocaine is like coffee, at first it gets you up, but then it makes you sleepy. and i dont think ther is such a thing as a cocaine withdrawl.......years of experience... ex. addict
Yawning is just the brain's way of getting oxygen when it doesn't have enough. This happens more often when you're sleepy, most likely because you're breathing is a little more depressed.
Yawning
by drinking coffee
because your sleepy too.
Yawning is a natural reaction and can not be prevented, but it is COMPLETELY normal. Yawning is caused because not enough oxygen is getting to the brain. Thus, it usually happens when an individual is sleepy or not thinking clearly.
they say its due to a lack of oxygen to the brain....it happens to me as a result of me being around air conditioninWell I always yawn when I'm tired, it gives me more energy but it makes me sleepy or when you se someone else yawning constantly!-Icelopbunny
Yes, it is common for people to feel sleepy or have the urge to yawn when they see or hear someone else yawn. This is known as contagious yawning and it happens due to the activation of mirror neurons in the brain, which mimic another person's action, in this case yawning. Contagious yawning is believed to be related to empathy and social bonding.
You yawn when you are sleepy because that is when you take in the least oxygen. Your body takes in more oxygen when you are yawning, which explains the reason to why you take in air when you yawn.
i heard it was lack of oxygen. don't take my word for it though
In texting or IM, you may write *yawns* or use a "sleepy face" if at hand.
When we are sleepy or feel drowsy, we yawn because our brain cells lack sufficient amount of oxygen. The deep breath associated with yawning helps us to drawn in more oxygen and supply the much needed oxygen to the tired body organs including the brain
Technically, no it doesn't. it's one of the bodies natural reactions to a buildup of CO2 in the body
a cool sleeping face is (-_-)zzz and a yawning/stretching one is \(-O-)/ hope this helps! (^_^)