Introduction: Definitions, Measurements, and Management in Insomnia

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The articles in this journal supplement are the result of a symposium on insomnia, highlighting the imhe articles in this journal supplement are the result of a symposium on insomnia, highlighting the importance of recognition, diagnosis, and appropriate treatment of insomnia. The specific issues addressed, chosen to present the current thinking in this field, include the prevalence and impact of insomnia, advantages and limitations of existing insomnia nosologic systems, measurements of sleep difficulties, the management of chronic insomnia, and issues particular to special populations of insomnia patients including those with depression, the elderly, and those with pain conditions.

The article by Walsh presents data on the prevalence and impact of insomnia and demonstrates that insomnia is a common condition that is associated with substantial socioeconomic impact.’ ‹