ST. PAUL, Minn. – Women with transient restless legs syndrome (RLS) during pregnancy appear to be at a higher risk of developing a chronic form of RLS later in life or have the same symptoms during future pregnancies, according to new research published in the December 7, 2010, print issue of Neurology®, the medical journal of the American Academy of Neurology. RLS is a sleep-related motor disorder that causes an unpleasant feeling in the legs. The condition generally worsens during rest at night and improves with movement. Symptoms tend to progress with age.