The folk said: "It is fatal to fight with one twist, two turns and three turns, and it is stiff without twisting." There is also a folk proverb: one turns to a man, the other to an ox, and the third to a monkey head. It means that two people with big tempers are a little too smart and play a lot of pranks.
Hair shaft and skin are inclined to some extent. Many hairs are inclined in the same direction, which is called hairflow or hairflow. The flow of hair on the top of the head can form a spiral arrangement of the center outward and the surrounding hair, commonly known as hair spinning. Usually people have a hair spin, mostly located on the top of the head, or left and right. A few people have two or three hairpins, some of which are located at the front of the head, forming a special hair stream. The position of the hair spin has a certain influence on the hairstyle. It is difficult for people with many hairstyles to comb and do their hair styles. Therefore, understanding and mastering the growth law of hairflow is conducive to better hair design. The straightness of hair is related to the shape of hair follicles. Hair follicles are cylindrical, and the hair that grows out is straight; Hair follicles are oval or oval in shape, and the hair they grow is wavy or curly. The irregular growth of hair balls is also related to the formation of curly hair. The number, position and rotation direction of hairpins are not necessarily related to personal temperament types. Folks say: "One twist, two twists and three twists are fatal, and not twisting is rigid" is unfounded.