If you have cramps in your sleep, you should take more calcium from your diet, eat more soy products, dairy products and deep sea fish to relieve cramps caused by calcium deficiency. If the cramps are more serious, they can be relieved by calcium carbonate and cod liver oil. Go outdoors more often to do sunlight to promote the absorption and transformation of calcium elements in the body. For leg cramps caused by excessive exercise, pay attention to muscle relaxation, and after exertion, you can do hot water leg soaking, massage, and red light baking to promote local blood. If you have frequent sleep cramps and have a family history of epilepsy to pay attention to, you can first go to the hospital to do a screening for epilepsy disease, leg cramps should pay attention to the relaxation of the legs, do not overstress. Leg cramps in growing children are caused by excessive growth rate. Calcium supplements should be supplemented with other nutritional intake, such as high protein, zinc and iron.