Sex life is the bridge and bond between husband and wife. How often is the most appropriate time to have sex? This is probably a question that many people have had. In fact, the factors that affect the frequency of sexual intercourse are complex and are related to both age and physique, as well as the needs of the couple.

In terms of frequency of sex, we first need to make it clear: whether it is once a day, once a week, or once a month, as long as the body can adapt and both parties feel satisfied, it is considered normal. On this basis, you can refer to the following data and calculation methods.

Sun Simiao, an ancient Chinese medical scientist, proposed in "Qianjin Prescription": "If you are 20 years old, apply it once a day (twice); if you are deficient, apply once a day; if you are 30 years old, apply once a day on the 2nd, and if you are deficient, apply it once a day. One application: once every 3 days for those who are 40 years old and once every 4 days for those who are weak; once every 5 days for those who are 50 years old and once every 10 days for those who are weak; once every 10 days for those who are 60 years old and once every 20th for those who are weak. "If you are 70 years old, give it once every 30 days; if you are weak, don't give it."

According to statistics from the Kinsey Sexology Report, an American sexologist, the average age of 20 is 7 to 10 times a week, the average age of 40 is 1.4 times a week, and the average age of 60 is 0.5 times a week. In addition, men have two stages of sexual desire depression at the ages of 25 to 35 and 45 to 55, but their physical strength will recover on their own, so there is no need to panic or take medication. The age of 65 is the third depression period, and it is suitable to take health care products. It is worth pointing out that men have sex for life and should not eliminate themselves. There is also a survey in the United States that shows that among people aged 20 to 40, manual workers have sex an average of 3 to 7 times a week, and mental workers have sex 2 to 8 times a week.

American scholars have summarized a "sex frequency formula" based on the influence of age on sexual ability - sex frequency = the first digit of age × 9, that is, multiply the ten-digit number of your age by 9, and the product The tens digit is the number of days a sexual cycle lasts, and the units digit is the frequency of sexual intercourse. For example, a man in his 30s, 3×9=27, should be able to have sex 7 times in 20 days, about once every 3 days, without affecting his health and work status. This formula is suitable for adults over the age of 20.

Of course, these reference values ​​must be flexibly controlled according to each person's nutrition, physical strength, spirit, environment, cultural level and living habits. American sexologist Stephen said: "You can't go wrong, because the correct sexual frequency is based on the preferences of both of you." The sexual life between couples should be based on each other's actual situation, and the frequency should be particular. Self-control without affecting health, it can be said that not being tired the next day after sex is not a big deal.