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yawning is a system that can reduce the excessive hot mind. When the human brain is getting unusually oxygen or low oxygen, the yawning is mobilized, That they provide oxygen to the desired amount.
Anoxic is a mental disorder due to low oxygen supply to the brain, Would have anoxic injury.
Mental cells start to die only in 5 to 6 minutes. If oxygen is not met at the time, then death may occur.
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