Restless Legs Syndrome

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PLMD/RLS Overview

Periodic limb movement disorder (PLMD) and restless legs syndrome (RLS) are distinct disorders, but they often occur simultaneously. PLMD and RLS are types of parasomnia (i.e., conditions that occur during sleep and create a disruptive event). They also are called (nocturnal) myoclonus, which describes frequent or involuntary muscle spasms.

Periodic limb movement was formally described first in the 1950s, and, by the 1970s, it was listed as a potential cause of insomnia...Read the full article