If you find it hard to get a good night's sleep, your health could be in danger. For years, physicians have known that poor sleep increases the risk for a number of serious conditions, including obesity, type 2 diabetes and heart disease.

Recent findings from a study at Duke University Medical Center suggest that the negative health consequences of poor sleep — measured by the time it takes to fall asleep, the time spent asleep and the degree of awakening during the night — ...

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