Sleep disturbances are common among patients with cancer for many reasons. Sleep problems can be present at any stage during treatment for cancer and in some patients, sleep disturbance may be the presenting symptoms that lead to the diagnosis of some types of cancer. Poor sleep impairs quality of life In people with cancer, but most do not specifically complain of sleep problems unless they are explicitly asked. Insomnia and fatigue are most common sleep disorders in this cohort, although primary sleep disorders, including obstructive sleep apnea and restless legs syndrome, which are common in the general population, have not been carefully studied in the oncology setting despite significant their impairment of quality of life.
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