"Eight men and seven women" is a statement about the growth cycle of men and women in the field of traditional Chinese medicine, which originated from Huangdi Neijing. That is, the growth cycle of men is 8, that is, there is a growth change every 8 years; The life cycle number of women is 7, which reflects a big change every 7 years.

At these rhythm points, both men and women should pay attention to health preservation to cope with the changes in the body. It means that when women are 49 years old, the qi and blood of Ren meridian begin to be scarce, which is equivalent to the arrival of menopause. Men will lose their teeth at the age of 8864. Teeth refer to teeth, and hair refers to hair, because teeth are the flower of kidney, which is dominated by kidney qi. "Tooth hair is gone" means that the convergence and hair growth of the human body are gone, and teeth and hair begin to fall off. At this time, men and women began to degenerate, and their physical resistance, organ activity and spirit were declining. It's time to take good care of your health.