What is leg cramps during sleep? Here are four reasons you must know!

When people sleep, they give their bodies a chance to rest. However, some people experience leg cramps while sleeping and often wake up from the pain. Why do these symptoms occur? I have found four reasons. Let's take a look!

(1) Fatigue:

Excessive exercise or excessive exertion of the legs during the day causes fatigue. Muscle tension is not improved at night, and excessive metabolites are not metabolized in time. Its stimulation can cause calf cramps.

(2) Cold:

Cold feet and legs during sleep can cause leg muscle cramps.

(3) Hypocalcemia:

When hypocalcemia occurs in the body, the excitation threshold of the neuromuscular junction is reduced, and the neuromuscular junction can be excited by stimulation intensity lower than normal, which can easily cause abnormal contraction and cause calf cramps. This situation is more common in pregnant women and the elderly who are calcium deficient.

(4) Blood flow factors:

For patients with varicose veins or deep venous thrombosis in the legs, if they maintain a certain posture for a long time while sleeping, the leg veins will be compressed and blood flow will be blocked, causing blood stasis. When blood stasis reaches a certain level, it will cause leg muscle spasms.