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\nThe main symptom of insomnia is trouble falling or staying asleep, even if you have enough time and the right conditions for good sleep. Over time, untreated insomnia may raise your risk of certain health problems or workplace or road accidents.
\nIf you have insomnia, you may:
\nSleep is important for your body and mind. To understand how sleep is important for good health, read our How Sleep Works and Sleep Deprivation and Deficiency Health Topics.
\nIn the short term, insomnia can make it hard to concentrate or think clearly. You may feel irritable, sad, and unrested or have headaches. Insomnia raises your risk of falling, having a road accident, or missing work.
\nIn addition, chronic insomnia can affect how well your brain, heart, and other parts of your body work. It can raise your risk of certain health problems or make existing problems worse. These conditions include:
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