Why do we become pale when we don't sleep (or maybe it's just me)?

Why do we become pale when we don't sleep (or maybe it's just me)?
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1 Answer

Answer :

I would have to say lack of blood flow. Apparently, if you eat healthy and you get plenty of sleep your skin will be darker. If you sleep very little and eat poorly your blood cant circulate properly and it will cause you too look pale or sickly.
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