The cause of the matter is this...... Micro-blog has a piece: "when you sleep, did you suddenly kick your leg or twitch?" Tell you the truth - it's called muscle jump, which happens frequently during sleep. When you sleep, your breathing rate decreases so much that your brain will feel that your body is about to die, so it sends a pulse to wake up your body. First of all, to understand the physiological muscle jump This type of muscle pumping is a manifestation of normal physiology, not a disease, such as hiccup, muscle pumping, fatigue or tension during sleep. Muscle jump is a rapid involuntary twitching of muscle, which is often seen as an electric shock because of its rapid speed. This movement is usually uncontrollable, and when asleep, the brain mistakenly believes that it is going to fall from the high ground. The brain's natural response can instantaneously tense muscles to balance, and the body produces violent shaking. So there's a sudden sense of empty kick in your dreams. Falling asleep, sometimes called sleep surprise, is the scientific term for a sudden shake when you sleep. This unconscious muscle twitch, will you go to sleep, appear in the arms, legs, and even the whole body. Most people have this experience: about 70% of them shake in their sleep. Therefore, occasional "muscle pumping" is a normal physiological phenomenon. Muscle pumping too much, too large to be the number of jump amplitude Ordinary people are incidental, not more than four or five times a night, the range of action will not be too great. But also pay attention to, if frequent muscle jump jump, it may be caused by some kind of disease.The only reliable criterion of truth is always to be consistent. Why does this happen? 1 too tired Stress during the day, mental stress, so pay more attention to rest, relax. 2 calcium deficiency May be low blood calcium, resulting in nerve, muscle excitability, hyperthyroidism, and convulsions, convulsions. 3 deficiency of liver and kidney If not very severe, but more frequently, in Chinese medicine may be liver and kidney deficiency, lack of Qi and blood. 4 symptomatic muscle jump If you have headache, dizziness, etc., you need a CT or MRI to determine whether the muscle pumping is a symptom of a brain lesion. Such as: metabolic or storage diseases of brain cells, degenerative diseases of the brain, sequelae of brain hypoxia, sequelae of traumatic brain injury, brain basal ganglia lesions, encephalitis, etc..