What causes frequent yawning when no one is around to yawn and give you the idea?
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Answers:
yawning is not caused by fatigue, it is caused by a lack of oxygen. Try breathing deeply every thirty minutes or so.
You're probably hyperventilated. Or there's not enough blood going to your lungs or it could be just allergies. I had the same problem once, I went to the doc and he gave me a medicine. The problem disappeared three days after taking the medicine. He said it's a sort of allergies combined with not enough blood going to the lungs. Nothing big. He also recommended me to take multi-vitamins.
lack of oxygen causes yawning
lack of oxygen in the brain
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