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Prevalence of insomia"Problems with falling asleep or daytime sleepiness affect approximately 35 to 40% of the U.S. adult population annually and are a significant cause of morbidity and mortality. However, the prevalence, burden, and management of sleep disorders are often ignored or overlooked by individuals and society in general."
"It is estimated that more than 60 million Americans suffer from insomnia annually, and this figure is expected to grow to 100 million by the middle of the 21st century."
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