When we experience involuntary muscle contraction and relaxation, it is known as a muscle twitch. A muscle twitch is the result of an electronic impulse sent to that particular muscle by a nerve that is out of voluntary control for the moment at least. Muscle fasciculation can exhibit in different forms and in different degrees, but the most common form of the phenomenon is twitching of the eyelids. If you are experiencing muscle twitches, then there can be a variety of reasons responsible for initiating such wayward nervous signals.

Muscles exhausted from manual exercise are often subject to muscle twitches. As the muscle loses all energy in it, you will lose direct control over that muscle temporarily and thus involuntary nerve signals responsible for muscle twitches, may act. The same happens when you pull a muscle or develop an injury, but only this time, the twitches may be more serious and accompanied by sting.

Psychological stress may also be responsible for affecting our nerves. It is often found that people experiencing emotional extremes, exhibit involuntary muscle movements because emotions affect the nervous system directly.

Diabetics may experience involuntary muscle twitches due to the effect of insulin, but there are other drugs as well, which are known to affect the nervous system in such a way that certain muscles begin to twitch. Sometimes, it is necessary to consult the doctor and change the medicine if the twitches become long lasting and painful.

If you have a habit of drinking a lot of coffee every day, then that could be the reason as to why you are twitching. Caffeine, found in the largest quantity in coffee is known to stimulate the nervous system. It is best to restrict the coffee for a while at least to see if that stops the twitching muscles.

Acute or chronic disorders of the nervous system like Fibromyalgia syndrome can also be responsible for muscle fasciculation. Of course if it is a disease of the nervous system, the twitching will be accompanied by other painful and disturbing symptoms like a tingling or burning sensation. Exercising, stretching, physiotherapy and medical help would most likely cure or control the nervous disorders, if done with sincerity.