CHAPTER SUMMARY It is estimated that 50 to 70 million Americans chronically suffer from a disorder of sleep and wakefulness, hindering daily functioning and adversely affecting health and longevity. There around 90 distinct sleep disorders; most are marked by one of these symptoms: excessive daytime sleepiness, difficulty initiating or maintaining sleep, and abnormal events occurring during sle...

background and purpose: identification of the effects of sleep disturbances on the quality of life could result in proper treatment of patients with heart failure. this study aimed to investigate the relationship between sleep disorders and erectile dysfunction, depression and quality of life in male patients with systolic heart failure. methods: this correlational study was conducted on 100 ma...

STUDY OBJECTIVES We examined associations between pubertal maturation and sleep in early adolescence, at age 12 y, and continuity and change in actigraphy-based sleep and parent-reported sleep disorders from age 8 to 12 y. We also explored longitudinal associations between actigraph estimates of sleep and sleep disorders. DESIGN A cohort study of children born in 1998 and tested at ages 8 y (...