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Sleep-wake patterns are governed by circadian rhythms, which usually run on 25-hour cycles with two natural daily peak times for sleeping, at night and at mid-day, the traditional siesta time. There is also mixed insomnia, conditioned insomnia (chronic disturbance such as a baby in the house), and dream-interruption insomnia (caused by deep anxiety).
Causes & Development Primary insomnia is not due to any other sleep disorders such as restless legs syndrome, medical conditions, drugs or mental disorders. A large percentage of chronic insomnia cases have a serious psychological cause. Many common medical problems (and some of the drugs that treat them) can cause insomnia, including allergies, arthritis, heart disease, hypertension, asthma, arthritic conditions, Alzheimer's disease, Parkinson's disease, hyperthyroidism, and attention deficit hyperactivity disorder (ADHD).
Treatment & Prevention Some women experience insomnia around menopause and find that hormone evaluation and balancing helps. In difficult cases, use of these in combination have been successful. However, it is more commonly recommended as an aid for occasional insomnia. Make sure that something you are currently taking is not causing the problem. |
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