TY - CHAP M1 - Book, Section TI - Sleep Disorders A1 - Czeisler, Charles A. A1 - Scammell, Thomas E. A1 - Saper, Clifford B. A2 - Kasper, Dennis A2 - Fauci, Anthony A2 - Hauser, Stephen A2 - Longo, Dan A2 - Jameson, J. Larry A2 - Loscalzo, Joseph Y1 - 2014 N1 - T2 - Harrison's Principles of Internal Medicine, 19e AB - Disturbed sleep is among the most frequent health complaints that physicians encounter. More than one-half of adults in the United States experience at least intermittent sleep disturbance, and only 30% of adult Americans report consistently obtaining a sufficient amount of sleep. The Institute of Medicine has estimated that 50–70 million Americans suffer from a chronic disorder of sleep and wakefulness, which can adversely affect daytime functioning as well as physical and mental health. Over the last 20 years, the field of sleep medicine has emerged as a distinct specialty in response to the impact of sleep disorders and sleep deficiency on overall health. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2022/06/25 UR - accesspharmacy.mhmedical.com/content.aspx?aid=1128502438 ER -