Muscle Twitching, fasciculation, when should i worry about muscle twitching

Muscle Twitching is the result of the sudden contraction or release of a muscle. Muscle twitching also referred as fasciculations and “myoclonus”, to describe these fast, involuntary twitches.
People describe muscle twitching differently.
Tingling, itching, burning, throbbing, muscle spasms. If muscle spasms is strong enough it can cause pain, this painful twitching is called muscle cramps.
Muscle twitching is very common, almost 70 % of population experience it time to time.
The most common places to experience muscle twitching includes the lower eyelid and legs, but muscles throughout your body, including the ones in your arms, feet and lower abdomen, can twitch as well.
Some possible causes of benign fasciculations in generally healthy people include:
Physical activity. Lactic acid accumulates in the muscles used during exercise. It most often affects the arms, legs, and back.
Stress and anxiety. stress and anxiety can cause what is often called a “nervous tic.” They can affect any muscle in the body.
Stimulants. Consuming too much caffeine and other stimulants can cause muscles in any part of the body to twitch.
Excitement and anything that increases adrenaline — may make fasciculations more likely.
Nutrient deficiencies can cause muscle twitching include:
Vitamin D, vitamin B, magnesium and calcium deficiencies.
Dehydration can also cause muscle twitching.
Another cause of twitching is Irritation of the eyelid or the surface area of the eye.
Adverse reactions to certain medications include: corticosteroids and estrogen pills.
excessive sweating, intense exercise, or fluid loss from vomiting or diarrhea can cause also muscle twitching.
physical exhaustion and lack of sleep.
Restless leg syndrome
Restless leg syndrome is a condition in which a person experiences uncomfortable sensations in their legs. An irresistible urge to move the legs often accompanies the sensations.
About 80% of people who have Restless Leg Syndrome also experience leg twitching while they sleep.
However, persistent or frequent leg twitching can sometimes signal an underlying nervous system disorder, such as:
In most cases, leg twitching is due to a common and relatively benign cause.
But sometimes it is caused by serious and even life threating conditions:
Fasciculations can be caused by serious condition, when they're of relatively sudden onset and there's accompanying weakness, loss of tone and shrinkage in the muscle called muscle atrophy.
Serious diseases can cause muscle twitching include:
Alzheimer’s disease, Lewy body dementia, epilepsy, Huntington’s disease and
amyotrophic lateral sclerosis.
Such causes are relatively rare.
Some people are just more prone to experiencing fasciculations, they can have it many years and haven't noticed any other changes in your muscle, or muscle strength, here with high probability cause is benign.
Muscle Twitching Prevention:
staying well-hydrated, Eating a healthful, Cutting down on stimulants, such as caffeine and alcohol
quitting smoking, if applicable.
exercising regularly, stretching and massaging the legs gently, getting enough rest.