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Insufficient sleep is associated with a number of chronic diseases and conditions—such as diabetes, cardiovascular disease, obesity, and depression—which threaten our nation’s health. Aside from these insufficient sleep is also responsible for motor vehicle and machinery-related crashes, causing substantial injury and disability each year.

More than one-quarter of the U.S. population report occasionally not getting enough sleep, while nearly 10% experience chronic insomnia. However, new methods for assessing and treating sleep disorders bring hope to the millions suffering from insufficient sleep. Getting sufficient sleep is not a luxury—it is a necessity—and should be thought of as a “vital sign” of good health.

  Sleep

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