RT Book, Section A1 Goodman, Catherine A1 Helgeson, Kevin SR Print(0) ID 1133952369 T1 Sleep Disorders, Age-Related T2 Exercise Prescription for Medical Conditions: Handbook for Physical Therapists YR 2011 FD 2011 PB McGraw-Hill Education PP New York, NY SN 9780803617148 LK fadavispt.mhmedical.com/content.aspx?aid=1133952369 RD 2024/04/19 AB Sleep disorders are commonly associated with the effects of aging. Aging affects the levels of melatonin and growth hormones, which help regulate arousal and sleep cycles. Medications taken for chronic conditions can also affect sleep cycles. Individuals who have difficulty falling asleep or staying asleep for adequate periods may use excessive chemical substances to help produce sleep and then use other substances to enhance their arousal and attention during the day.1 Individuals who work rotating shift hours or travel across time zones may find adapting to changes in their sleep cycle more difficult as they age. Sleep disorders affect mood, attention levels, and concentration during waking hours. Clients with sleep disorders may not feel they have enough energy or stamina to participate in regular exercise programs.2