Insomnia

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What is insomnia?

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Insomnia is defined as difficulty initiating or maintaining sleep, or both, despite adequate opportunity and time to sleep, leading to impaired daytime functioning. Insomnia may be due to poor quality or quantity of sleep.

Insomnia is very common and occurs in 30% to 50% of the general population. Approximately 10% of the population may suffer from chronic (long-standing) insomnia.

Insomnia affects people of all ages including children, although it is more common in adults and its frequency increases with age. In general, women are affected more frequently than men.

Insomnia may be divided into three classes based on the duration of symptoms.

  • Insomnia lasting one week or less may be termed transient insomnia;

  • short-term insomnia lasts more than one week but resolves in less than three weeks; and

  • long-term or chronic insomnia lasts more than three weeks.

Insomnia can also be classified based on the underlying reasons for insomnia such as sleep hygiene, medical conditions, sleep disorders, stress factors, and so on.

It is important to make a distinction between insomnia and other similar terminology; short duration sleep and sleep deprivation.

  • Short duration sleep may be normal in some individuals who may require less time for sleep without feeling daytime impairment, the central symptom in the definition of insomnia.

  • In insomnia, adequate time and opportunity for sleep is available, whereas in sleep deprivation, lack of sleep is due to lack of opportunity or time to sleep because of voluntary or intentional avoidance of sleep.
Reviewed by Melissa Conrad Stöppler, MD on 2/7/2012


Patient Comments

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Insomnia - Treatment Question: Please describe your effective treatments with insomnia.
Insomnia - Sleep Hygiene Question: Describe the types of sleep hygiene you practice to treat insomnia. What works for you?
Insomnia - Medications Question: What medications have you taken to relieve your insomnia? Please relate your experience.
Insomnia - Experience Question: Please describe your experience with insomnia.
Insomnia - Causes Question: What caused your insomnia?
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Tips for Getting to Sleep While Under Stress

Medical Author: Melissa Conrad Stoppler, MD
Medical Editor: Jay W. Marks, MD

Viewer Question: When I'm under stress, I can't seem to get any sleep. How can I learn to sleep even during times of emotional stress?

Doctor's Response: If you experience short-term, stress-related insomnia, there are some measures you can take to help improve the quality of your sleep.

  1. Make your bedroom an inviting place to be. Clear the clutter and invest in some quality sheets or comforter in a soothing color. Create a welcoming environment with flowers, photos, pictures, candles-whatever makes you feel content and relaxed.
  2. Avoid use of the bed for watching TV, eating, or working, so that you are conditioned to associate the bed with sleep. If you do wish to use the bed for a bit of nighttime reading, read only pleasure books in bed.
  3. Establishing a regular sleep-wake cycle is also important. Your body will learn to set its internal clock to your schedule and will eventually respond to internal cues to become sleepy at a given time and to awaken at a given time. A good way to begin this is by getting up at the same time every morning-yes, even on weekends. Even if you're tired, try not to nap....

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