In fact, there is no real eating fat people, as long as his energy intake exceeds the body’s consumption, those excess energy will become body fat. So if a person does not eat fat only two possibilities, one is not enough to eat, usually more restrained, only occasionally indulge themselves; another is that his consumption is really very large, like many manual workers, although they eat a lot, but usually work to consume more, so generally will not be fat. In addition to these, there is another kind of people who have a relatively weak absorption capacity. The body from the food energy is to see how much they can absorb, and not eat how much energy the body can get how much energy, those who have a weak absorption capacity to eat the same amount of food, the energy obtained than normal people much less, so generally not easy to gain weight. There are many factors that lead to obesity, genetics, work, physique, etc., and not exactly what we think will be fat if we eat more. But excessive obesity can also cause a variety of diseases, will affect the normal life. For example, sleep apnea syndrome, this disease will cause lack of oxygen during sleep, the body does not get enough rest, resulting in daytime drowsiness, mental discomfort, and may also make the temper grumpy. As we grow older, the impact of obesity on people will become more and more obvious, the probability of complications will also be higher, obesity is also more difficult to treat. However, after reaching severe obesity and a certain age, weight loss surgery can be considered to lose weight. In the case of adolescents, parents also need to be able to strengthen the management to help their children to recover better.