Sleep is an important part of our lives, we need it to restore our physical and mental well-being. Our bodies have an internal, natural clock which promotes a regular sleep cycle but when this cycle is disturbed, this is where the person experiences insomnia. The definition of insomnia is, the difficulty in initiating and/or maintaining sleep. Almost everyone has experieneced some insomnia in their lifetime, it is often caused by stress or worries, physical discomfort, medication, or a change in sleep schedule.
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