What does a man's mandarin duck mean?

Chinese medicine believes that the kidney is responsible for storing essence, growth, development and reproduction. The life process of human growth is closely related to the rise and fall of essence in kidney, and reproduction is closely related to kidney meridian. Kidney is divided into kidney yin and kidney yang, also known as Yuan Yin and Yuan Yang. Kidney controlling water refers to the gasification function of kidney, which transports and excretes semen in the body. It plays an important role in the metabolic balance of body fluids. The kidney governs the absorption of qi, which means that the kidney has the function of clearing qi by inhalation, keeping the inhalation depth and preventing shallow breathing. Only when kidney qi is full can you breathe evenly. Male; Mandarin ducks; androgen

Neijing said: "The intersection of two essence is called God." In other words, after sperm and eggs are combined, a new life is born. The sperm with Y chromatin gene combined with egg is male, and the sperm with X chromatin gene combined with egg is female. The birth, development, aging and termination of male life are closely related to androgen in the body, so androgen is called the yuan yang of male life.

1 definition

Androgen, also known as "androgen", refers to the hormone that promotes the maturity of male accessory organs and the development of secondary sexual characteristics, and maintains normal sexual desire and reproductive function. Testosterone is mainly secreted by testis, 95% of which is secreted by leydig cells of testis and 5% by adrenal gland. Adult male testes secrete about 4 ~ 9 mg of testosterone every day (female ovaries also secrete a small amount of testosterone).

2 Physiological function

2. 1 Effect on male fetus Androgen can promote the differentiation of gonad structure, and both male internal genitalia and external genitalia are formed under its action.

2.2 Androgen influences physiological development, which can promote the development of primary sexual characteristics, enlarge testicles and enlarge penis. Promote the appearance of body hair, voice change and prominent Adam's apple in secondary sexual characteristics.

2.3 Provide an environment suitable for sperm survival. The concentration of testosterone in male hormones is many times higher than that in general body fluids, which can create good living conditions for sperm.

2.4 Maintaining normal sexual function Androgen stimulates people's sexual desire and improves sexual excitement through its influence on the sexual nerve center and stimulation of reproductive organs.

2.5 Promoting healthy androgens can accelerate the synthesis of various protein, including promoting the synthesis of immunoglobulin and improving immunity. Therefore, the human body is muscular and strong, and androgen can also improve the hematopoietic function of male bones and make bone marrow produce more red blood cells.