Insomnia: Background information when reading Black Moon

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Black Moon

By Kenneth Calhoun

Black Moon
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  • Hardcover: Mar 2014,
    288 pages.

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Book Reviewed by:
Sarah Sacha Dollacker

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Beyond the Book:
Insomnia

Though Black Moon suggests an extreme scenario of a world without sleep, sleeplessness is a real problem in the United States. The World Health Organization defines insomnia as a "repeated difficulty with sleep initiation, maintenance, duration, and/or quality of sleep and results in daytime impairment." Insomnia is further categorized into three levels: Transient, lasting less than a week; Short-term, lasting 1-4 weeks; Chronic, lasting longer than a month. It is estimated that 50-70 million people suffer from a sleep-related disorder. Most of them are undiagnosed. Thirty to fifty percent of the general population suffers from either transient or short-term insomnia, while chronic insomnia appears in only 9-15% of the population. This last group is comprised mainly of women, older adults, and patients with chronic medical and psychiatric disorders.

Insomnia is classified as either primary or secondary. Secondary insomnia is diagnosed when a specific cause can be identified such as ...

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