Читать книгу Sleep: The secret to sleeping well and waking refreshed - Prof. Idzikowski Chris - Страница 50

Insomnia can develop from sleeplessness, and often patients will know when their sleep problems started but cannot understand why they have not gone away. Psychiatrists rarely diagnose insomnia but when they do the following conditions must be met:

• The time it takes to get to sleep must be more than 30 minutes. Total sleep time during the night is usually between three to six hours. The sleep may be unrefreshing.

• The problem must occur three or more nights a week.

• The insomnia causes major problems in daytime functioning (socially, at home, at work).

• It must have lasted for three months or longer.

• There are no environmental, lifestyle, medical or psychiatric causes for the problem.