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Exercise is no quick cure for insomnia

Exercise is a common prescription for insomnia. But hitting the treadmill one day won't translate into better sleep that night, reports new research. It takes four months so people shouldn't get discouraged. This is the first long-term study to show aerobic exercise during the day does not result in improved sleep that night when people have insomnia. The study also showed people exercise less following nights with worse sleep.
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