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  Oct 12, 2018

Types of Sleep Disorders

Sleep plays an essential part in maintaining health. There are several disorders and disturbances that affect the duration and depth of sleep. In adequate sleep or over sleep can cause numerous behavioral and cognitive problems. Some of the sleep disturbances include:-

Insomnia

This is the commonest sleep disorder. This usually means the inability to initiate or maintain continuous sleep.

Insomnia affects nearly 40% of women and 30% of men. It affects over 50% of people over the age of 65. Insomnia may be loss of quantity (number of hours) and/or quality (depth) of sleep.

In the elderly insomnia may be due to frequent arousals and reversal of sleeping hours from night to day.

Insomnia may be caused by three important factors:-

  • Psychophysiologic factors – resulting from age, stress and emotional changes. Psychophysiological insomnia is commonly seen when the patient worries excessively about his/her inability to sleep all night and increases the risk of a sleepless night. There is usually resultant short sleep time, daytime fatigue, and irritability.
  • Organic factors – loss of sleep due to other diseases and disorders like heart disease, asthma, snoring, obstructive