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The subject population was highly diverse in terms of age, socioeconomic status, education, and geographic neighborhoods throughout the Pacific Northwest, although all participants were Caucasian
High performers people with demanding cognitive and physical loads often have the greatest need for deep sleep and the greatest disruption to it
10.4196/kjpp.2019.23.4.251 55 JeonI.KimH.KangH.LeeH.-S.JeongS.KimS.et al (2014)
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