Some obese people in order to lose weight, not only excessive dieting, and even water are afraid to drink more. In fact, the lack of water is precisely the taboo of weight loss. Dr. Howald, an expert in the study of obesity in the United States, pointed out that if you do not drink enough water, many people will become more obese, muscle elasticity loss, a variety of organ function decline, increased toxins in the body, joint and muscle pain, and even lead to “water retention” and other diseases. Why do you suffer from “water retention” instead of drinking less water? It turns out that obese people do not drink enough water, they can not metabolize the excess fat in the body in time, on the contrary, in the state of water shortage, the body will spontaneously retain water, that is, the body accumulates part of the water as compensation (also called “stagnant water”), which instead increased the weight. This condition can also disrupt the metabolism of the entire body, leading to serious consequences. Water retention is divided into an acute phase and a chronic phase. At the beginning of the acute phase, there can be generalized swelling, blurred vision, increased salivation, muscle spasms, and increased intracranial pressure; in the late phase, there can be abnormal behavior, disorientation, agitation, convulsions, and even coma, and in severe cases, respiratory and cardiac arrest can occur within a few hours. In the chronic stage, most of them have symptoms such as drowsiness, headache, weakness, loss of appetite, nausea and vomiting, and muscle cramps. When the patient is properly hydrated, the water retention will be suppressed and the symptoms will be relieved. Therefore, dieters should take enough water while controlling food calories so that their metabolism can function more normally and their weight can be more easily controlled. It seems that “drinking cold water, are growing meat”, that may be drinking high calorie soda. The so-called “control mouth” is to control the caloric intake of food. Some people may eat only 2 taels of rice, but eat some melon seeds as a snack after the meal and drink soda when they are thirsty. Finally, they complain, “I eat very little, but I grow meat!” The calorie content of a 330ml Coke is 594 kJ, and the calorie content of 100g melon seeds is 2,535 kJ. Sometimes the reason for gaining weight may be that “it is in the essence but not in the quantity”. Although my weight loss patients will lose a lot of weight, but the final effect also needs to be personal diet with, weight loss surgery is ultimately a kind of help, the body to maintain five years ten years, or a lifetime all depends on personal control.