Calgary Neuroscientist: Brushing Teeth In The Dark Could Help With Sleep | HuffPost Life - Action.News ABC Action News WestNet-HD Weather Traffic

An Oxford neuroscientist says that the secret of a good night's sleep is brushing your teeth in the dark, because bright bathroom lights stimulate the body. "Also, drinking wine helps you sleep - until it doesn't," TODAY's Savannah Guthrie comments.

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