On the contrary, most women demand sexual life twice a week on average, and the peak of sexual life is only 10 years, especially after the peak of sexual life at the age of 40, the sexual demand plummets. From the perspective of the whole life, whether it is "old wives and few husbands" or "old wives and few wives", there will be a period of reasonable collocation, and the total length of the best collocation of the former is shorter than that of the latter. He gave an example, assuming that a 20-year-old male is younger than A and married to a 30-year-old female B. In the first ten years of their relationship, both sides have strong demand and belong to the best match; However, in the second decade, the demand for B sex between 40 and 50 years old has plummeted, and there will be factors that affect sexual satisfaction, such as dryness. At this time, the young A between 30 and 40 years old is still full of "sex", but it is increasingly difficult to be satisfied; In the third decade, B, who is in menopause at the age of 50-60, has little interest in sex, but A, who is 40-50, is still in a period of strong sexual desire and wants to be intimate whenever he has the chance, although his sexual frequency is lower than before, but this demand may not be released at B. In other words, the best combination of "old wives and few husbands" and the most wonderful time is only 10 ~20 years. Moreover, the age difference between the two sides is best controlled within 10 years. On the contrary, according to the same reasoning, suppose a 20-year-old woman, Xiao A, marries a 40-year-old woman, B. In the first decade, B can easily satisfy the young A; At the beginning of the second decade, most 50-year-old men can still meet the sexual needs of 30-year-old women, and so can B. However, when B is close to 60 and A is close to 40, the number of sexual encounters with B plummets. In the third decade, the demand for 50-year-old A is greatly reduced, and at this time, B can just meet the requirements of A. In other words, if you change to the combination of "old husband and few wives", the most wonderful time is generally 25 to 40 years. "It is best to control the age difference of' old wives and less wives' within 30 years old." Zhang Bin said. The feeling of a happy life is the key. "The abnormal age marriage of' an old wife and few husbands' should be based on true love." Zhang Bin believes that the combination of the two should have a certain understanding of each other's psychological and physical aspects, and actively cooperate with and take care of each other and arrange their lives reasonably. Only the feelings cultivated on the basis of mutual initiative and mutual understanding can create a happy marriage life. In addition, we should also pay attention to the physical care of the "old wife". Zhang Bin reminded that with the decline of ovarian function, women's sexual organs will gradually shrink, sexual response will gradually slow down, and the secretion level of hormones will also decrease, which will cause pain or discomfort during sexual intercourse. It is necessary to protect the genitals of older women and avoid injuries due to dryness and other reasons.