Untreated sleep apnea may be contributing to MS patients’ debilitating fatigue. Findings from a new study show that people with MS have a heightened risk for sleep apnea. Patients with MS who have fatigue or any of the other common symptoms of sleep apnea should be evaluated for the sleep disorder.

The study, which was published in the February issue of Journal of Clinical Sleep Medicine, looked at the prevalence of sleep apnea in MS patients.

More than half of the MS patients included in the study had symptoms which indicated a high risk for sleep apnea. One out of every five had already been diagnosed with the sleep disorder.

The study used a series of medical questionnaires commonly used in sleep clinics to pre-screen patients for sleep disorders. The MS patients answered questions about their sleep quality, daytime symptoms and whether they had been diag