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Your brain is deprived of oxygen, which triggers your dighram to flex causing a yawn.

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11y ago
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Q: Why sometimes do you yawn when you wake up?
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Related questions

Why do cats yawn when they see you?

They probably just woke up. People yawn when they wake up too.


Why do you wake up feeling like you want to gag?

because, when you are about to wake up, sometimes you have the feeling of a pile of bricks- not wanting to wake up or move.


Do you wake up late?

Just like everybody else, I sometimes wake up late on Sundays.


Can you give me silly sentences with evening?

evening is when i wake up. I took bath this Evening.


Why do you sometimes wake up with scrapes?

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Is it bad when you yawn frequently?

It's not necessarily bad when you yawn frequently. A lot of people associate sleepiness or exhaustion with yawning. It may also mean you have a lack of oxygen. That could also explain why people yawn a lot when they first wake up. It's because when you are asleep, you don't breathe as often; just deeper. so, if you yawn frequently, you probably need to catch up on your sleep. I hope this helped


Why don't people wake up when their alarm clock goes off?

Sometimes people are too tired to wake up,


Is the word wake-up a verb?

The phrase "wake up" is a verb (e.g., "They will wake up the parrots early", or "They will wake them up early"). It's called a "particle verb" ("up" is the particle) or sometimes a "phrasal verb" (since it is not a single word).


How can cats wake up so wide awake?

Well, a lot of the time they were only in a very light sleep mode, so a small noise can wake them up. They can then wake up feeling refreshed but alert straight away. They do this when they are only staying somewhere for a little while, or are wanting to look out for danger, therefore they can wake up straight away and be awake. When they are in a deep sleep and are woken up they will almost always yawn and stretch, and perhaps stay still for a while. It is just the cat's nature to be very awake when they wake up.


Is it normal to burp aloud when you wake up in the morning?

Depends; Sometimes.


Does yawning mean your tired?

Yes , when you yawn you take a slow and deep breath that brings more oxygen to the brain. the oxygen gives your brain cells a little wake up call.


Why do you get this feeling that you wont wake up?

In the morning, when you are about to wake up, sometimes you have the feeling of a pile of bricks- not wanting to wake up or move. This is most likely caused by sleeping late the previous night: being tired. Prevent this "I don't want to wake up" feeling by sleeping earlier. If this does happen and you want to wake up, take a shower or wash your face with cool water to help.