The reason of sallow color after fitness is excessive exercise, which leads to insufficient qi and blood. Proper cleaning before exercise, loose pores during exercise, oil in hair follicle mouth absorbs sweat and expands to block hair follicle, pores are closed after exercise, and dirt is not easy to be discharged, thus causing skin inflammation (the same is true for girls who love makeup exercise). Supplement B vitamins: After bodybuilders consume more protein, the human body consumes a lot of B vitamins in the process of digesting protein; Lack of B vitamins can lead to seborrheic dermatitis. Reducing squatting will obviously increase the secretion of androgen in the body, and sebaceous glands are androgen receptors, which secrete more oil after being stimulated by androgen. If the face is not cleaned in time, seborrheic dermatitis is easy to form. Proper intake of high-sugar carbohydrates can avoid excessive intake of protein. The former stimulates a large amount of insulin secretion, which makes the skin easy to get oily. The latter contains inflammatory factors, which makes the sebum tubes of hair follicles keratinized, which together leads to skin problems such as keratinization and closed mouth. The training plan should be gradual. Don't suddenly return to a very high training volume after a long training pause. Endocrine disorders can easily lead to a variety of skin problems, and cardiopulmonary function is also prone to overwork and injury.