Here is a calculation formula for reference.
Here, there is a formula for reference. This formula was published by American sexologists at a one-off sexology forum held in China. Roommate frequency = the first number of ages ×9. Let's look at specific examples. For example, women (between 20 and 29 years old), according to the same room frequency formula: 2×9= 18, 18 can be divided into the combination of 10 and 8, 10 represents the period, 8 represents the same room frequency, and according to the same room frequency formula, it represents 650. For women (30-39 years old), according to the frequency formula: 3×9=27, 27 can be divided into the combination of 20 and 7, 30 stands for the cycle, 7 stands for the frequency of housing, and according to the frequency formula, it means that seven sexual behaviors have taken place within 20 days. In fact, this calculation formula is for reference only. Some professors have suggested that the frequency of sexual life and the feelings of both husband and wife are the most important. High-quality sex life can improve the immunity of both husband and wife, and good one-time sex life is of great help both psychologically and in health, adding a love lubricant to the harmony of husband and wife relationship.