At ordinary times, you can properly supplement calcium, get more sunshine, pay attention to local warmth, and also pay attention to changes in posture, such as sitting posture and sleeping posture, to avoid oppressing nerves and blood vessels. You can also do hot compress, massage local muscles and strengthen local blood circulation. If you don't get better, you should go to the hospital for examination and treatment.

Here are four suggestions to prevent leg cramps:

Wear comfortable shoes. Flat feet and other structural problems make some people particularly prone to leg cramps. Proper shoes are one of the ways to make up for it.

Pull back the 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.

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.

Drink more water. If you usually have a lot of activities (including walking, gardening and housework), you need to replenish fluids to avoid dehydration, but don't overdo it. A large amount of liquid will dilute the concentration of sodium in the blood, which may lead to various problems, including muscle spasms. How much water you should drink depends on your activities and the food you eat. Because the stimulation of thirst becomes weaker with age, we may forget to drink enough water when we are old. Some people are also worried about going to the toilet more often because they drink too much water, especially at night.