Older People Sleep Less. Now We Know Why.

August 20, 2014 12:36 PM

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It's long been known that the older you get, the less you sleep. There are many proposed reasons for why this happens, and they include new medications, psychological distress, retirement or simply the theory that the elderly need less sleep.

But a new study from Beth Israel Deaconess Medical Center and University of Toronto researchers offers, for the first time, a neurological reason for the phenomenon: namely, that a specific cluster of neurons associated with regulating sleep patterns, called the ventrolateral preoptic nucleus, may s...

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