Shaking hands from hunger may be a hypoglycemic reaction, and blood sugar should be monitored promptly. If the blood sugar is lower than 3.9mmol/L, it is generally called hypoglycemia clinically. When severe hypoglycemia may cause hypoglycemic encephalopathy, the patient can have memory loss, inattention and disorder of thinking, which may even endanger the patient’s life, and should be given timely correction can be oral glucose, sugar saline, and also oral chocolate and cookies. If possible, intravenous infusion of hypertonic glucose can also be given to quickly correct the hypoglycemic reaction. In addition, hypoglycemia may also cause palpitations, chest tightness, shortness of breath and sweating and other discomforts to the patient. If a patient has hypoglycemia, it is usually seen mostly in patients with diabetes, but also in patients with weakness. In the case of diabetes, in general, hypoglycemic drugs must be applied regularly and a regular diet must be taken during the medication period. If you are weak, you must eat three meals a day regularly to prevent hypoglycemic reactions.