Sleep Disorders
Insomnia is a difficulty in initiating and maintaining sleep, or the feeling of not having had a restful sleep. It is a problem of decreasing the amount and quality of sleep. This sleep disorder occurs in a third of the population, or 30%, and is more frequent in the elderly, women, and people with psychiatric illnesses. Most cases of insomnia have an acute onset, coinciding with stressful situations, and tend to become chronic in 60% of cases