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Sleep and sleeping disorders

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Another thing I was wondering about was Alaska. I know that sounds funny but they have many months out of the year where it is always light even at night and times where it is dark even during the day. My question about that was if people in Alaska have more sleeping disorders due to the light and dark abnormality? I would think they do because their body can't tell if it is time to sleep or not.

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The expert examines sleep and sleeping disorders.

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Actually, those individuals that live in an environment with a consistent shift in dark and light have been shown to react normally as their internal biological clocks are reset by exposure to light. This is explained with clarity and detail by the Medical College of Wisconsin: the biological ...

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