According to British media reports, 25-year-old hairdresser Kelly Harrison weighed 252 pounds, often ridiculed. After suffering a blow, she decided to undergo gastric reduction surgery is a gastric bypass surgery to quickly and effectively lose body fat. early 2004, after completing the surgery, Kerri began to quickly and effectively reduce weight. 8 months later, lost 126 pounds, becoming a slim super dieter. In the fall of 2004, Kellie developed a strange illness all over her body, with unbearable swelling of her limbs and face, and redness and swelling on her body. Doctors examined her and found that she was losing protein from her body at an extremely rapid rate, resulting in a severe lack of protein in her body. On the morning of March 25 this year, Kaili fainted on the floor because she could not stand the severe pain in her body. Her parents rushed her to the hospital to undergo life-saving surgery. Within 3 days, Kaili died in the hospital. The originally lively and healthy Kelly was less than 25 years old when she died. Gastric reduction surgery, also known as gastric bypass surgery, was proposed by Mason, the father of international bariatric surgery, in 1967 using the principle of partial gastric resection and easy weight loss of the patient, mainly by removing a remote part of the stomach to reduce the volume of the stomach and then anastomosing the stomach with a mini-intestine. In addition to reducing the volume of the gastric capsule and limiting eating, the bypass itself also has the effect of helping weight loss. Banded gastric reduction and gastric pouch reduction have been developed. Banded gastric reduction is to wrap the stomach tightly with a silicone band; gas bag gastric reduction surgery is to put an inflatable bag in the abdominal cavity and compress the stomach after inflation, regardless of the method, the purpose is to reduce the volume of the stomach or reduce the area of the gastric mucosa to prevent the absorption of nutrients, and dieting or fasting is a reason, in fact, this surgery is worse than dieting, not only destroys the ability to absorb nutrients normally, but also affects normal digestive tract function, causes severe diarrhea, increases the incidence of gallstones and arthritis, and even causes more serious and severe complications with a mortality rate of up to 10%. Gastric reduction is a relatively cruel method of weight loss for cosmetic purposes and does not conform to the principles of cosmetic surgery. Cosmetic surgery requires that no organs be destroyed, no function be affected, and no health be harmed, so it is undesirable to use methods that destroy normal organs to achieve the goal of weight loss. First, can dieting be used to lose weight or not? Most people who diet to lose weight have the experience that once they stop dieting, more than 95 percent of them regain their original weight, and 90 percent of them gain weight instead than before they lost it. Dieting can make people fatter. Studies have shown that dieting does not reduce weight in the long run, and that weight gain after dieting is not caused by artificial reasons, but is a normal physiological response made by our body to help us continue to survive. After many diets, many of us have begun to understand that we are not supposed to be able to dictate our diet as we wish. It is well known that dieting is in fact a conscious, self-inflicted act of starving oneself. The World Health Organization considers people who consume less than 1,000 calories a day to be in a state of starvation, and weight loss recipes in the United States usually limit calories to 700 to 1,000 a day. 2,200 calories are needed on average for women under age 50, and 1,900 for older women. In addition to the age factor, needs will also vary with body size and activity level. People who consume fewer calories than their bodies need, especially for those who consume more than 1/4 of their calorie needs from alcohol, sweets and other low-nutrient snacks, are likely to lack essential nutrients. When not eating enough, the body responds in a specific way to help us survive. Whether you are consciously eating less or not getting enough food, the nature of the problem is the same: hunger is hunger. The fewer calories you consume, the longer you go hungry, and the more often you go hungry, the greater the likelihood that your body will suffer permanent damage. Assuming you are dieting and consuming very few calories per day (for some women, 1200 calories per day is too little), you may feel drained after a few days. Especially if you are on a low-carb diet, you may become uninterested in anything. When the body’s stored fat is converted into energy, it cannot provide glucose, yet glucose is the fuel that supplies brain activity. As a result, the body has to break down proteins in food or in body tissues (muscles and organs, such as the heart) to ensure the brain’s need for glucose. Fat metabolism without sufficient carbohydrates leaves a waste product – ketones – in the blood. If there are too many ketones in the blood, it will upset the acid balance in the blood and will make you feel headache, sleepy and dizzy. After a few weeks, the brain may adjust itself to use some ketones as fuel as a stopgap measure. At this point you will be very irritable, partly because the food deficit is making it difficult to control your blood sugar, you will also feel very depressed, and it will lead to a loss of libido, etc. You may have an increased appetite, especially for foods that produce calories quickly, such as candy foods, and devour a lot of them in an uncontrolled manner, trying to make up for the missing calories and your brain’s need for glucose. If you have more than 10% protein in your diet, then your need for carbohydrates will be very fervent. High protein diets actually create a craving for carbohydrates, and as a result, dieters can’t avoid forming the bad habit of periodically “topping up” on high-calorie foods in large quantities. So, how should I lose weight? (1) Dramatically increase exercise. This is probably the single most important change a person can achieve in their lifetime. It can enhance physical strength and flexibility, and perhaps improve self-confidence, eliminate psychological depression, and even the effect of weight loss without dieting. But beware, don’t become obsessed with exercise to the point of being unreasonable. (2) The variety of diet should be diverse, to ensure that every piece of food eaten is rich in nutrients. Eat less poor quality food including high fat food. (3) Let the weight drop slowly and keep the weight loss within 10 kg so that you can achieve success. The reduction in calories should not exceed 500 calories per day compared to before the diet. If the food has less than 1200 calories, it will be difficult to get the essential key nutrients. (4) There is no food or pill that has the magic power to lose weight. Most diet pills contain a drug similar to norephedrine (PPA), which can increase blood pressure, cause anxiety, dizziness, stroke or lead to mental confusion. (5) Trust yourself and the signals your body is sending. Eat when you’re hungry, don’t “starve” yourself. If you feel uncomfortable, check what and when you eat and be careful never to give yourself serious symptoms such as hair loss, shivering, or dry skin. (6) The water in the body fluctuates from day to day. So weighing need not be too frequent, every one to two weeks is enough. (7) A limited local liposuction can have an “immediate effect” and is the best choice for local fat accumulation.