Quite often, the problem of leg cramps occur in cold water - the muscles begin to shake, producing heat. On their feet during the voyage accounts additional burden as a result of oxygen and glucose very quickly squandered. Vledstvie this occur cramps. Reduction feet in cold water feels like a stronger and more influenced by the fear factor.
The cause of leg cramps during the night is usually a strong overvoltage calf muscles during the day (constant work on the legs, wearing uncomfortable shoes). Quite often seizures occur in people with flat feet. They need to carefully monitor their feet - not to overtax the muscles, to choose the most comfortable shoes.
The reason may be a night seizures and the lack of certain elements in the body. In addition to the aforementioned glucose, it may be deficient in calcium, magnesium and potassium.
Night cramps may signal the occurrence of diabetes mellitus, or be the result of vascular disease (atherosclerosis or varicose veins).
Reduction of the leg muscles and possible pregnancy. The main reason for this lack of supports various trace elements. In late gestation added another reason: it becomes quite difficult to wear big belly, leg muscles while experiencing increased load.
If the reduction of leg muscles happens very often, nutritionists recommend eating more calcium. It is found in foods such as cottage cheese, cheese, milk, and others.
In any case, with frequent seizures consult your doctor.