The golden section, also known as Huang Jinlv, means that there is a certain mathematical proportional relationship between the parts of things, that is, the whole is divided into two parts, and the ratio of the larger part to the smaller part is equal to the ratio of the whole to the larger part, and its ratio is 1: 0.6 18 or10/. The above ratio is the one that can arouse people's aesthetic feeling most, so it is called the golden section law.

According to Professor Lin Maochang, a beauty expert in Xijing Hospital of the Fourth Military Medical University, in recent years, many scholars have found that there are many points, triangles, rectangles and indexes in the appearance and body structure of bodybuilders closely related to the golden section, which shows the important application value of the golden section in human beauty and beauty practice.

■ golden section of human body

The so-called golden section point refers to the section point of a line segment, and the ratio of short line segment to long line segment is 0.6 18 or approximate value. There are many golden sections in the human body, which is one of the foundations of human beauty.

Umbilical region As far as the whole human body structure is concerned, the navel is the golden section, and the ratio between the upper navel and the lower navel is 0.6 18: 1.

From the top of the Adam's apple to the navel, the Adam's apple is the dividing point, and the ratio of the two is about 0.6 18.

The line from the hairline between the eyebrows to the root of the chin is the dividing point between the upper 1/3 and the lower 2/3.

The line from the front hairline to the chin base of the lower nose is the dividing point between the lower 1/3 and the upper 2/3.

The line from the base of lip bead's nose to the base of chin is the dividing point between the upper 1/3 and the lower 2/3.

In the front view of the quarrel, the dividing point of the horizontal line of the mouth crack is on the left (right) side 1/3, and the opposite side is 2/3.

The dividing point from acromion to the middle end of elbow joint (olecranon).

The dividing point from the bottom of the knee joint (patella) to the umbilical cord.

Vertical line of nipple, the dividing point from clavicle to groin.

■ The golden rectangle of the human body

A golden rectangle is a rectangle with an aspect ratio of 0.6 18 or close to this value. There are also many golden rectangles in the human body, which is one of the foundations of human beauty.

Head contour: head length (from the top of the head to the chin) and width (the middle distance between the two ends of the zygomatic arch).

Facial contour The horizontal line of the eyes is wider, and the distance from the front hairline to the chin root is longer.

Nose contour: the alar is wide, and the distance from the nasal root to the lower nasal point is long.

When the lip contour is static, the distance between the peaks of the upper lip and the lower lip is wide and the distance between the corners is long.

The average shoulder width and hip breadth of trunk contour are wider, and the distance from acromion to buttock base is longer.

When the fingers are close together, the horizontal line of metacarpophalangeal joint is wider, and the distance from wrist joint to fingertip is longer.

■ Human body gold index

The gold index, that is, the proportional relationship between two line segments, is 0.6 18, or close to this value. There are many line segments in human face, trunk and limbs that have this proportional relationship.

Nose-lip index: the ratio of the width of nose wing to the width of spat spacing.

The ratio of the width of the eye lip index to the width of the outer canthus of both eyes.

Upper and lower lip height index The ratio of the red height of upper and lower lips to the facial midline.

The ratio of the distance between the outer canthus of two eyes to the horizontal width of the eyes.

The index of limbs is that the connecting line from acromion to middle fingertip is the length of upper limb, and the connecting line from iliac crest to sole is the length of lower limb. The ratio between them is about 0. 18.

■ golden triangle of human body

The isosceles triangles with waist-to-bottom ratio of 0.6 18 or approximate value and internal angles of 36 ″, 72 ″ and 72 ″ respectively are golden triangles. The golden triangle of the human body is: the frontal view of the external nose is the golden triangle; The side view of the external nose is a golden triangle; A triangle formed by the tip of the nose and the angles on both sides; A triangle formed by the endpoints of two shoulders and the center of the top of the head. In addition, the ideal weight and height, waist circumference and bust, waist-hip ratio of a well-proportioned person are also close to the golden section law.