Answered by The WikiAnswersÂ® Community. Making the world better, one answer at a time. Stephen Hawking has three children: Robert, Lucy (a novelist), and Timothy (aka Tim). Stephen Hawking has three children: Robert, Lucy (a novelist), and Timothy (aka Tim).
Muscle twitches, also called fasciculations, usually only affect a single muscle. They're characterized by tiny contractions inside the muscle, caused by a nerve impulse. Muscle spasms, also called muscle cramps, affect multiple muscle tissues and are brought on by a chemical imbalance in the body.isorders of the nervous system can also cause muscles to twitch. These include nerve damage, fibromyalgia, muscular dystrophy and Lou Gehrig's disease. Along with muscle twitching, weakness in the muscles accompanies these disorders.
In brief: Yes. yes, and many twitches are NOT an indication of amyotrophic lateral sclerosis (ALS). Most twitches are the result of single nerve fibers stimulating contractions in a group of voluntary muscle cells..a so called motor unit..which can cause an area of muscle to twitch or wiggle. Larger twitches, 'starts' where a whole limb jerks, are something coming from the motor control in the brain.