45-year-old men are recommended not to have more than one sex a week, both to ensure the quality of sex life and to ensure physical strength. With the growth of age, men’s sexual function gradually decline, for 45-year-old men, if sex is too frequent, more than once a week, it is likely to appear kidney essence deficiency or kidney Yang deficiency symptoms, there may be waist and knee weakness, sweating, weakness, mental state is relatively poor and other symptoms. These conditions may affect the mental state of men once they appear, so it is recommended that once a week is enough. But for men who work out all year round, have a better physique and are physically active, the number of specific sexual intercourse can be increased appropriately to not affect their organism state. Therefore, it is recommended that men in their daily lives can appropriately increase their own physical exercise, when physical fitness to improve, the number of sex can also be increased in moderation, but not too often. In addition, it is not recommended that men take too many emergency drugs in order to have sex, its may affect the health of men.