The progress of society and the improvement of living standards has made people’s demand for quality of life has reached a new height, obesity is no longer an unfamiliar topic. Weight control has become a symbol of the pursuit of health from the requirements of young people who love beauty, and has reached the level of fat talk, parents worry about their children overweight, Mrs. complained that her husband is too fat, the elderly are not proud of the general belly. Some years ago, the American Institute of Nutrition, Dr. Eckel said: “Obesity is no longer just a matter of affecting appearance and blameworthy, obesity is about to become a dangerous plague, such as high blood pressure and high blood cholesterol, is a chronic disease.” Unsurprisingly, we now collectively refer to the obesity-centered combination of hypertension, hyperlipidemia, hyperglycemia, and concomitant other metabolic disorders as the metabolic syndrome, which is a good illustration of where the dangers of obesity lie. Although weight control, health protection has been accepted by the people, but due to people’s health and shape of the requirements of the increasing and economic interests of the drive, obesity drugs and treatments are also emerging, the five eight, so that people are caught up in a dizzying, at a loss. Often heard that people can not lose weight, but the decline in physical strength, discomfort, and even go to the hospital to seek medical attention. In this need to emphasize is that obesity is a multi-factorial chronic diseases, weight loss is a scientific behavior, can not be arbitrary, everyone can be, since obesity is a disease, we must be treated with a scientific attitude, according to the cause, the condition and the different groups of people to take different therapeutic measures, so as to both reduce the weight, but also to protect the health of different groups of people from the following aspects of weight loss strategies: First, youth obesity Adolescent obesity has become a problem that can not be ignored today, and in children also found in the past rarely seen type 2 diabetes, hyperlipidemia, fatty liver and other adult diseases, these diseases are closely related to the occurrence of obesity. The occurrence of obesity in adolescents is partly due to genetic factors, but mostly due to poor lifestyles, changes in diet, the popularity of computers and game consoles, and the reduction of activities have largely contributed to the current consequences of obesity. Children’s obesity treatment should focus on controlling the weight of the continued excessive increase in weight, such as education of parents and children to develop reasonable eating habits, do not deviate from the diet, eat more high-quality proteins (such as dairy, seafood) and rich in vitamins, multi-fiber food, to ensure that the nutritional composition of a reasonable amount of calories in the right amount, to avoid too much to eat a high-calorie, high-fat, high-carbohydrate foods, especially fast food, fried foods, carbonated beverages. Avoid eating too much high-calorie, high-fat and high-carbohydrate food, especially fast food, fried food and carbonated drinks. However, children are in the growth period, the weight should be matched with the increase in height, not to restrict the diet and nutritional intake, especially to reduce the number of meals is not desirable for children. It is worth noting that can not talk about fat in front of the child, so not only from the physical, but also from the psychological will bring obstacles to the child. Parents take their children to do more outdoor activities, encourage children to come and go and play with each other, reduce the burden of learning appropriately, and communicate more with people and society, rather than facing books and screens every day. For obese children, relatively more inactive, so should consciously give him more physical activities, such as serving as a liaison at school, more chores at home, go to school as far as possible on foot, go upstairs without taking the elevator, after meals and study for a period of time for some fitness activities, the beginning of the time, adults to supervise, or let them write a diary, and get into the habit of sticking to it. Unless severe obesity and other causes of morbid obesity, children’s obesity does not advocate drug treatment. Some diseases such as hypothalamus, pituitary disease, thyroid disease, gonadal disease, liver disease can lead to obesity, such as adolescents with dysplasia, gynecomastia, acanthosis nigricans, purple lines on the abdomen, etc., and irregular menstruation in girls, which should attract the attention of parents to go to the hospital in time to relieve the cause of the disease. In especially obese and appear lipid metabolism, sugar metabolism disorders of obese young people, should be under the guidance of the doctor appropriate application of some appetite suppressants or biguanide drugs, in some children with hypothyroidism, can be applied to the appropriate amount of thyroid hormone. Second, adult obesity young people due to their own higher requirements, grasp knowledge faster, more activities, and social activities also make them pay more attention to the quality of life, so this crowd of obesity is not the main problem, but to pay attention to the problem of overkill, women’s aesthetic requirements and physiological fat content is more, so that they have become the most concerned about obesity of the crowd, the most urgent requirements, the girl to the bones of the Beauty is proud of, but this can often be another pathology. There are many misconceptions and lack of science in the treatment of weight loss in the female population. For example, they rely on fasting to lose weight, the thinner they are, the more beautiful they are, and excessive exercise, thus giving rise to anorexia, menstrual disorders, malnutrition, and other female-specific complications of weight loss. From a physiological point of view, women’s fat is more than men’s, the distribution of parts and men are different, and the adipose tissue is an important endocrine organ, which can secrete many essential hormones, such as leptin, lipotropin, etc., which play an important role in the development of the human body, reproduction and normal metabolism, so the requirements for women is a uniform distribution of fat, the BMI is between 19-23 is the ideal Body weight. Normal eating and reasonable exercise are encouraged, and it is more beneficial for women to eat more dairy and soy products because soy products contain phytoestrogens, which can supplement the lack of estrogen and its symptoms caused by aging. Adult obesity in the population of concern is middle-aged people, successful in their careers at the same time, often bear the double pressure of career, family, often in the forgetfulness of social activities, do not care about their own bodies, with the growth of age, often have to pay a heavy price, male obesity is more harmful than female obesity, the treatment has been far from attracting enough attention. Big belly, general belly is considered to be a symbol of successful men, rich performance. Do not know that it is this obesity is the greatest health hazard, we call abdominal obesity, visceral obesity, also known as apple-type obesity. In essence, the increase in visceral fat, mostly caused by insulin resistance, hyperlipidemia in these populations, high blood sugar, hypertension, heart disease, fatty liver incidence increased significantly, so the treatment is more complex, to be integrated treatment, different from person to person. Simple obesity to adjust the lifestyle, exercise into the life, to walk with the car, face to face instead of electric talk, will play a significant effect. In terms of treatment, the first to emphasize the adjustment of lifestyle, regular, quantitative eating, appropriate exercise. Hyperphagia, lack of exercise in moderate obesity, can consider the application of appetite suppressant drugs and drugs to increase metabolism, weight loss of about 5% -10% is appropriate, but weight loss drugs are not easy to apply long-term. For patients with predominantly centripetal obesity, accompanied by hypertension, hyperlipidemia and hyperglycemia, it is likely to be metabolic syndrome, which should be examined as necessary, and drugs should be used to control a series of metabolic abnormalities caused by hyperinsulinemia and fatty liver, and reasonable application of lipid-lowering drugs and insulin sensitizers will have a good effect. In patients with metabolic disorders are also often accompanied by hypothyroidism, can also cause weight gain and obesity, can be appropriate supplementation of thyroxine to relieve the symptoms and control weight. Some middle-aged women due to estrogen deficiency and menopause can also cause obesity and sodium retention, can be appropriate to add a small amount of diuretic drugs to reduce edema, and the use of hormone replacement therapy, can also reduce weight. Body mass index is a standard to determine the degree of obesity, height (meters) and weight (kilograms) squared ratio to indicate that more than 35 we called super obese or morbid obesity, for this super obesity at home and abroad are now carrying out surgical treatment, the effect is remarkable, and can alleviate the other complications, to achieve the effect of multi-purpose, according to the situation of the choice of intragastric balloon placement, gastric banding and gastric bypass surgery. It is reported abroad that after gastric bypass surgery for diabetic obese patients, blood glucose can be returned to normal and no medication can be used for quite a period of time. Guangzhou has several hospitals also carried out the surgical treatment of obesity, have achieved good results. Third, geriatric obesity has a saying called “money is hard to buy old to thin”, from one side also shows that the elderly obesity is not good for health, a number of studies have also proved this point. Studies have shown that the obese population over 60 years old has reached 1/4, the incidence of diabetes, hypertension, cardiovascular disease, gout, arthritis and other diseases in the elderly obese population is significantly higher than the non-obese group, and heart attack, stroke and other morbidity mortality rate is also increased. However, the elderly tend to pay less attention to the problem of obesity, rarely because of obesity problems to the hospital for medical treatment, mostly in the emergence of other diseases before consultation. There are many causes of obesity in the elderly, such as postmenopausal obesity in elderly women, obesity caused by depression in widows and orphans, or obesity caused by over-eating and inactivity, so in the elderly, we should also emphasize a reasonable diet, appropriate exercise (such as walking, climbing stairs), and at the same time in the application of weight-loss drugs to be cautious, avoiding the application of inhibition of the central nervous system, the impact of cardiovascular weight-loss drugs, and encouraging the elderly to develop a more tea drinking habits, can drink a small amount of alcohol. Encourage the elderly to develop the habit of drinking more tea and water, and may drink a small amount of alcohol. In terms of drugs, lipase inhibitors or biguanide drugs can be used, which have a certain effect on the control of obesity and other metabolic abnormalities. However, the elderly to reduce weight is easy to slow not easy to rush, easy to less not easy to more, as long as not to keep the weight of the continuous growth will be subject to good results. Can not deliberately go to lose weight and affect the health of the body, it has been reported that the mortality rate after infarction in emaciated patients is significantly higher than that of obese patients, so the understanding of obesity can not be generalized.