why do we yarn in the morning and evening
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Regulating brain temperature keeps the brain working effectively, and lowering brain temperature helps stimulate alertness, supporting attentiveness, vigilance and other cognitive functions. Temperature regulation might be why we yawn most often first thing in the morning and at the end of the day.
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Regulating brain temperature keeps the brain working effectively, and lowering brain temperature helps stimulate alertness, supporting attentiveness, vigilance and other cognitive functions. Temperature regulation might be why we yawn most often first thing in the morning and at the end of the day..
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