http://tiny.cc/twitch-cure - Leg Fasciculations - How To Stop Twitching BFS - also known as 'muscle fasciculation syndrome', 'benign fasciculation' and 'fasciculation syndrome' - is a disorder of the nervous system characterized by the uncontrolled twitching (fasciculation) of muscle groups in various parts of the body. It may or may not be associated with muscle cramps. Although it occurs more commonly in the muscles of the legs, arms and face, it can occur in any voluntary muscles, including those of the tongue. As its name suggests, it is a benign, somewhat irksome condition that, fortunately, does not progress to a more serious neurological disorder.