The structure of the human body is relatively complex, especially there are many organs in the human body, and everyone's physique is different. People with different constitutions will encounter different health diseases in their lives. Many people will find that the more they eat, the thinner they will be, while those who eat less will be easy to get fat and empty. This is mainly different from the human digestive system. The body can't absorb the nutrients in food, which will lead to obesity or emaciation. So, what is the main reason for people to lose weight? Let's take a closer look.

1. Pathological emaciation is a common disease in human body, such as parasites, even anemia and diabetes. Some people with hyperthyroidism and tuberculosis can also lead to emaciation, which is a common cause of emaciation.

2. Spleen and stomach emaciation is due to the low absorption function of spleen and stomach and insufficient nutrient absorption, especially for people with bad stomach, which can not absorb nutrients and can not be improved for a long time, and finally it is prone to emaciation.

3. Compound emaciation is the result of the combination of spleen and stomach emaciation and pathological emaciation, and it is also the cause of emaciation in human body.

4, mental factors, mental anxiety, irregular life, overwork, lack of sleep, and even excessive body consumption, reduced intake, which is also one of the reasons for the body to lose weight.

5. Other factors, dietary factors, genetic and endocrine factors.

To sum up, all the above are the reasons that lead to weight loss. After finding the reason, we need to use scientific methods to gain weight to ensure our health. At present, there are still many ways to gain weight, not through overeating. In fact, gaining weight requires reasonable adjustment of the body and improvement of physical fitness. And it is a scientific way to choose according to everyone's specific situation.