It is the healthiest standard for men in East Asia. The closer to this standard, the more reasonable the burden of blood vessels, viscera and muscles in the body. According to medical research, excluding abnormal external factors, the closer to this standard, the longer the ideal natural life expectancy of men.
But this standard is actually a figure with a certain amount of fat. The ratio of waist circumference to hip circumference has approached or even exceeded the ratio of 0.9. However, the human body actually needs a certain amount of fat for internal use. People with less fat, such as athletes, thin people. In fact, the burden of internal organs, muscles and blood vessels is relatively heavy. However, in any case, your waistline standard should not be higher than this standard. If your waistline is 3cm higher than that calculated by the following formula, you should lose weight. If your bust and hip circumference can't be lower than this standard, and it is 3cm lower than this standard, then you are too thin, so your body is prone to problems.
Chest circumference = height X 0.48 (e.g. standard chest circumference of height 175cm = 175cm X 0.48=84cm).
Waist circumference = height X 0.47 (e.g. standard waist circumference of height 175cm = 175cm X 0.47=82.25cm).
Hip circumference = height X 0.5 1 (for example, the standard hip circumference of height 175cm =175cm x 0.51= 89.25cm).