A week a normal life, after all, sex is personal privacy, each couple, family, the frequency of sex varies from person to person. However, in terms of the current norm, 20-30 year olds can have sex about 3 times a week; 30-40 year olds, about 2 times a week; and so on, to 60 years old after entering old age, 1 time a month. Sexual life is mainly derived from the regulation of stress as well as improve the relationship between husband and wife, for the promotion of mutual feelings have great benefits. In addition, with the growth of age sex life should also be subject to certain restrictions, such as some chronic diseases, diabetes, hypertension, coronary heart disease, and a variety of psychological state, these will affect the quality and number of sex life, mainly based on personal regulation.