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Restless legs syndrome (RLS) is a condition that causes a very strong urge to move the legs. The urge to move usually is caused by an uncomfortable feeling in the legs. It typically happens in the evening or at night when sitting or lying down. Moving eases the discomfort for a short time.
Restless legs syndrome can begin at any age and tends to get worse with age. It can disrupt sleep, which interferes with daily activities. RLS also is known as Willis-Ekbom disease....
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The chief symptom of restless legs syndrome is an urge to move the legs. It's common to experience:
Often, there's no known cause for restless legs syndrome. Researchers suspect the condition may be caused by an imbalance of the brain chemical dopamine. Dopamine sends messages to control muscle movement.
Sometimes RLS runs in families, especially if the condition starts before age 40. Researchers have identified sites on the chromosomes where genes for RLS may be present.
Symptoms of restless legs syndrome sometimes go away after treating an underlying condition, such as iron deficiency. Correcting an iron deficiency may involve taking an iron supplement by mouth. Or you may be given an iron supplement through a vein in your arm. Take iron supplements only with medical supervision and after having your blood-iron level checked.
If you have RLS without an associated condition, treatment focuses on lifestyle changes. If those aren't effective, you...
For informational purposes only and not a substitute for professional medical advice, diagnosis, or treatment.
© Mayo Clinic
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