Insomnia after weight loss, it is possible that excessive weight loss caused by autonomic dysfunction, hypoglycemic reaction, or the use of weight loss drugs can cause cerebral cortex excitation, resulting in insomnia occurs. Some people over-pursuit of weight targets, excessive dieting, weight control people usually eat little or even no food at dinner, fasting time is too long, at night, easy to have a hypoglycemic reaction, but also prone to insomnia, dreamy cold sweat symptoms. If the use of drugs to lose weight, those drugs that make weight loss, most have the effect of promoting metabolism, these drugs are mostly on the cerebral cortex has an excitatory effect, during the drug may cause nerve excitation, resulting in difficulty in falling asleep. If weight loss occurs frequently insomnia, you need to correct the bad way to lose weight, in the control of weight at the same time to ensure that the body’s basic metabolism and nutrient supply; if self-adjustment insomnia is difficult to correct the situation, need to seek medical treatment.