How can sexual life be considered a healthy law?

Hello, landlord! The frequency of people's sexual life is closely related to personality, physique, age and occupation. The number of sexual intercourse between each couple is very different, even if the same couple is in different environments, working conditions, emotions and physical health. Generally speaking, the number of sexual intercourse is; 25 ~ 35 years old, twice a week; 35 ~ 50 years old, once a week/kloc-0; Over 50 years old, 1 ~ 2 times a month. This principle is not suitable for some couples. The frequency of sexual intercourse between husband and wife is mainly based on the principle that both parties do not feel tired the next day after sexual intercourse. For example, on the second day after sexual intercourse, fatigue, general malaise, loss of appetite, backache, and the woman's feeling of abdominal distension or mental anxiety may lead to too frequent life, so she should stop for a period of time to help restore her physical strength. Both men and women should pay attention to the cleanliness of external genitalia. Every night, both sides should wash the vulva with warm water. Men should turn the foreskin up and clean up the scale inside the foreskin and in the coronal groove; Women should wash away the secretions of labia majora and vaginal vestibule to avoid bringing bacteria into the vagina during sexual intercourse and causing infection. Excessive excitement, emotional anxiety, physical discomfort and fatigue after drinking are not suitable for sexual relations. The other party should give care and understanding, not importune or force. The best time to have sex is before going to bed at night. Because you will feel tired after sexual intercourse, you can go to sleep and recover your strength easily. Old people can also sleep first and have sex after waking up. A wife should not have sex during her menstrual period. During menstruation, the whole pelvic cavity is congested and the endometrium falls off. The inner surface of the uterine cavity is a wound. If you have sex at this time, it is easy to cause pelvic infection, such as endometritis, salpingitis, pelvic inflammatory disease, etc., which will cause the woman's illness and infertility.