The golden ratio of body shape is one of aesthetics. The standard perfect body shape, the upper and lower body are separated by the waistline, and the ratio is 4:6, which is in line with the "golden section law". The pursuit of a perfect body shape does not mean a thin and thin body shape, but a tight muscle line without excess fat. The common weight loss methods in the market can only shrink the volume of fat cells, but cannot reduce the number of fat cells, so the effect is not long-lasting and easy to rebound.