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Insomnia: What causes it and how many of us have it? – CNET
If your sleep troubles are more than just a few sleepless nights, you might have insomnia.

Having trouble sleeping? Find out what insomnia is and how it’s diagnosed and treated.
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You try to get 8 hours of sleep each night, but you struggle to fall asleep or wake up throughout the night. Sounds familiar? You might have insomnia.
About 30% of all people have difficulty sleeping and about 10% of those people will get an insomnia diagnosis, according to Dr. Deirdre Conroy, clinical director of the Behavioral Sleep Medicine Clinic at the Michigan Medicine Sleep Disorders Cen…
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