There are many reasons for sudden awakening during sleep, such as when a person is under high mental stress, it may cause convulsions because the nerves of the human brain are under tension. The human body loses a lot of calcium and the lack of calcium causes convulsions, and the lack of exercise and poor physical fitness are also causes of convulsions. Also it may be a case of myocardial ischemia. Combine with anti-cardiac pain for treatment. It is best to have a low salt and low fat diet, low cholesterol diet, do not eat too greasy and stimulating food, and keep a good mood. Don’t think too much about unhappy things before going to bed, you can also drink a glass of milk before going to bed, to help sleep has a great effect. Usually do not work too hard, do not often stay up late, must develop a combination of work and rest, develop the habit of early to bed and early to rise.