I can always hear the weight loss partners together to send such a lament: “I can not reduce, my fat is born!” , “My parents are fat, I am fat because of heredity for sure.” …… So, is obesity really hereditary? Obesity is really hereditary? Scientists have found through research that there are indeed many genes in the human body that inherit the symptom of obesity, but the individual and combined effects of these genes on the genetics of obesity have yet to be studied in more depth. Population genetics through the family line survey found that both parents are obese, one of the two parents obese, both parents are not fat children obesity incidence of 75%, 40% and 15% respectively; of which, the twin child obesity heritability is about 60%. Environmental factors can also cause obesity At first glance these data, it seems that genetics for obesity is very influential, but these genetic influence on obesity evidence can not exclude the environmental covariance influence, what do you mean? For example, if parents’ daily diet is big fish and meat, and now and then they have to go to fast food restaurants regularly, and fried food is the favorite snack, then the children’s diet and life behavior will be greatly influenced. In addition, the genes of obesity inheritance will often be combined with lifestyle habits and environmental factors to produce effects. One study pointed out that a gene called Clock is associated with obesity, and its two loci rsl0002541, rs6850524 and smoking have a joint effect. In other words, if you have this gene, it’s not terrible, but if you smoke while having this gene, then you can prepare to give your belt two more holes. Is it impossible to lose weight with genetic obesity? Although obesity has the possibility of heredity, genes only account for a small part of the many factors. Healthy habits are important both for yourself and your offspring, as it can even affect your gene expression. However, for fat people who are already severely obese, trying to make lifestyle and dietary changes such as increasing exercise and reducing calorie intake is the first step on the road to weight loss, but these methods may not work in some morbidly obese people, so losing weight through weight loss surgery is another option with more lasting results. Obesity is a complex problem with multiple causes, including genetics, hormones, medications and personal health conditions. A family that likes to watch TV is at greater risk of gaining weight than one that likes to walk in the park,” he said. While diet and exercise can help with weight loss, these activities can be difficult to maintain in the long run and results vary from person to person. Compared to bariatric surgery is more effective in the long run and the results can last longer while alleviating other health problems that arise from obesity.” However, doctors also caution that not all obese people are candidates for bariatric surgery. According to the Chinese Guidelines for the Surgical Treatment of Obesity (2007), those who meet any one of the first three of the following and have the fourth condition can perform bariatric surgery: 1, BMI ≥ 32kgm2 2, confirmed the emergence of metabolic disorder syndromes related to obesity, such as: hypertension, diabetes, fatty liver, sleep apnea syndrome, hyperlipidemia, etc., and predicted effective weight loss. 3, waist circumference: men ≥ 90cm, women ≥ 85cm; dyslipidemia. 4.Other: no alcohol or drug dependence, no serious mental and intellectual disorders; other weight loss methods are ineffective or intolerable; 16-65 years old; understanding and acceptance of surgery and post-operative lifestyle changes.