The main causes of leg cramps are: 1. Poor local circulation, peripheral vascular disease or varicose veins of the foot. 2. The ambient temperature changes suddenly. 3. Emotional stress. 4. Excessive loss of water and salt causes electrolyte imbalance in the body. 5. The content of minerals (such as magnesium and calcium) in the diet is insufficient. 6. The incidence of some chronic diseases and cramps in pregnant women will also increase. 7. Hypothyroidism, uremia or other physical diseases. 8. Motor neuron disease, spinal radiculopathy or peripheral neuropathy. 9. Some antihypertensive drugs and hypolipidemic drugs may also cause leg cramps. 10. Unknown reason. How to reduce the probability of leg cramps: 1. Pay attention to calcium supplementation: in adolescence, calcium will be relatively lacking, which is more likely to cause cramps. 2. People who are prone to cramps when sleeping at night should do stretching exercises in the cramped parts before going to bed. 3. Pay attention to the warmth of two calves when sleeping. You can put on more clothes to keep your hands and feet warm. 4. Excessive sagging of the foot plate (sagging to the sole of the foot) may lead to calf cramps. Avoid letting your feet droop excessively when sleeping. 5. It is reported in the literature that vitamin E can reduce the number of seizures, but there is no conclusion at present. When the calf cramps, the cramped calf muscles can be straightened and rubbed, and the cramped pedal can be pulled up. And pay attention to keep the calf muscles warm after cramping. In folk therapy, it is suggested to press acupoints with your fingers, or you can try. Although the pain of leg cramp is very painful, it wakes people up in the middle of the night. The only thing that can be fortunate is that their lives will not be in danger. = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Proper shoes are one of the ways to make up for it. 2, pull loose bedding. Many people like to cover the quilt tightly when they sleep. But especially when lying on your back, the quilt may press your feet, making the gastrocnemius and plantar muscles tense. Tight muscles are prone to spasms. Just pull the bedding loose. 3. stretch your muscles. Stretching gastrocnemius and foot muscles before going to bed can help prevent cramps. The method of stretching is the same as stretching gastrocnemius and foot muscles when leg cramps occur. You can also put the front of your foot on the first step of the stair step, and slowly press your heel down to make it lower than the step position. 4. In order to prevent calf cramps, attention should be paid to avoid excessive exertion and long time when the legs catch cold or suddenly exercise; Pay attention to calcium supplementation in diet. Foods rich in calcium include shrimp, shrimp skin, milk and its products, vegetables, kelp, sesame sauce, bone soup and so on. Exercise and sunshine are beneficial to bone growth and health care, and calcium lactate and calcium gluconate can also be taken orally.