Ergonomics
There is a study in Japan that continuously observed the body shape evolution of more than 40,000 women from a scientific perspective over 45 years. Research has proven that "female age" and "body aging" have fixed patterns and patterns. In terms of body shape, there are three strong changes (three turning points). At the age of 24-25, the metabolism decreases and the body begins to accumulate fat. Once you reach the age of 37-39, the weight will increase dramatically. This allows us to understand that physical aging can be prevented and slowed down early.
* Track and study the changes of the same woman from 20 to 60 years old