Since ancient times, maintaining an attractive body shape has been a lifelong endeavor for countless women. The definition of beauty varies greatly from era to era and from nation to nation. However, with the exception of the Tang Dynasty, where fat was considered beautiful, all dynasties basically regarded thinness as beautiful. In the past, the four major factors that determine aesthetic beauty (health, reproduction, financial ability, and influence) have completely changed by now. With the development of medical science and technology, human beings have realized that being fat is not healthy, the ability to reproduce does not depend on being fat or thin, and the economic ability has long gone beyond the primary stage of showing off one’s wealth by eating fat. And we are in an era of diversified values, and there is no such thing as an individual’s total manipulation of social aesthetics. So for the sake of health and beauty, it is indeed good to lose weight appropriately, and it is also good to maintain a slim figure. Is it true that the less fat one has, the thinner one is and the more beautiful one is? The answer is no. Because too thin will look no vitality and vigor, facial tissue loss caused by the depression is a sign of aging. Moreover, in addition to making people uncomfortable, skinny bones will also lead to infertility, osteoporosis, gallstones, anemia, memory loss and other diseases due to the imbalance of the endocrine system and the body’s energy supply. What’s more, because of the body’s visceral fat reduction, fat on the organs of the loss of fixed and protective effect, and lead to gastric ptosis and uterine prolapse and so on! Therefore, after maintaining health to have the necessary fat, not excessively obese is the most beautiful.