The man’s beard grows fast with the kidney does not have a direct relationship, the growth rate of the beard and the body’s sex hormone level is related to the body, if the body’s sex hormone level is high, the growth of the beard will be faster. The blood vessels supplying beard growth at the chin are a bit richer and easier to get nutrients, so under the stimulating effect of androgens, the growth of beard into a faster speed, and the components of the beard are mainly protein, when the body’s metabolism is accelerated, it also accelerates the growth of the beard. Beard grows fast, generally considered to be androgen secretion caused by exuberant, if long-term sleepless nights insomnia, will also cause beard grows fast, so in daily life to avoid staying up late, adjust the level of androgen secretion in the body, to avoid due to endocrine disorders caused by the skin abnormal changes, resulting in discomfort.