Men at the age of 45 may experience erectile difficulties, decreased hardness, reduced number of sexual encounters and weak ejaculation due to factors such as decreased androgen levels in the body and atrophy of the testes, leading to sexual physiological symptoms such as erectile difficulties, decreased hardness, reduced number of sexual encounters and weak ejaculation. Usually the time of sexual physiological changes in men varies greatly depending on individual differences. In most cases, with age, after 45 to 50 years old, along with the decline of gonads, the decline of androgen levels in the body, and the impact of some underlying diseases, there may be varying degrees of performance of sexual hypogonadism. The common symptoms of hypogonadism include loss of libido, difficulty in erection, and decrease in hardness, accompanied by a decrease in the number of times of sexual intercourse and weakness of ejaculation, which are mostly regarded as normal physiological changes. However, whether these symptoms are noticeable or not, and the age at which they appear or not, are related to different individuals’ own health conditions, dietary habits, lifestyles, and work and life pressures, etc. Paying attention to maintaining a regular work and rest schedule, a healthy state of mind, and moderate physical exercise can, to a certain extent, slow down the decline of sexual function. Consult your physician for advice.