It is not good to be too thin. Too thin people need fat to keep warm. Too thin people are afraid of cold in winter. Moreover, the subcutaneous fat layer is also an umbrella for the human body, which can protect the internal organs in case of accidents and make people less vulnerable to internal injuries. In addition, it is also a spare energy pool for the human body. Especially for girls, if they only want to be thin, it is likely to cause abnormal physical development, and even lead to failure to become mothers in the future, with serious consequences.