Either Too Little or Too Much Activity and Sleep May Worsen Symptoms, Study Says

Either Too Little or Too Much Activity and Sleep May Worsen Symptoms, Study Says
People with fibromyalgia and chronic fatigue syndrome may do best with individually tailored plans for physical activity — and ideal sleep hours — a study suggests, after finding that patients who exercised, or slept, either very little or a lot reported greater symptom severity than those who were moderate in their behavior. The study, “Physical Activity and Sleep in Chronic Fatigue Syndrome and Fibromyalgia Syndrome: Associations with Symptom Severity in the General Population Cohort LifeLines,” was published in the journal Pain Research and Management. Chronic fatigue syndrome (CFS) and fibromyalgia (FM) are disabling health conditions collectively known as functional somatic syndromes. The two often overlap, with substantial numbers of CFS patients meeting the criteria for fibromyalgia (disabling and unexplained fatigue and musculoskeletal pain, respectively) and vice versa, the study noted. Both diseases are also thought to have varied causes that include biological, psychological, and social factors. "Recent research suggests that both avoidance of activity and overactivity are associated with an increase in symptom severity, including pain and fatigue. This indicates that, in patients with CFS and FMS [fibromyalgia syndrome], both high and low levels of physical activity may result in higher symptom severity, comparable to what is observed in the general population," the researchers wrote. But the role of physical activity and sleep in the development and progression of CFS and FM is not well understood, and studies into activity and sleep levels of both groups of patients — and their impact on disease sym
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