The function of gonadal axis is declining, the testosterone content in serum is also declining, and the male fertility is also declining. Compared with 25-year-old young people, the reproductive ability of men over 40 can reduce the probability of their spouses getting pregnant within one year by more than 50%. Even if testosterone is at a low level, it can still promote sperm production. But from a medical point of view, the best reproductive age for men is 30-35 years old. Because the quality of male sperm reached its peak during this period. Generally, from 50 to 60 years old, with the increase of age, leydig cells of testis will gradually age and degenerate, the secretion of shining testosterone will be greatly reduced, and the volume of testis will be relatively reduced. At this time, other tissues and organs of the body are gradually aging, and the reproductive capacity is gradually declining.
With the increase of age, the concentration and vitality of male sperm are decreasing. 20 17 "Human Reproductive News" published the largest research on the change of human sperm quantity in history, and it is the top international journal in the field of reproduction and obstetrics. After investigation and study, the global male sperm concentration has decreased by 59.3% in the past 40 years. The total concentration of semen is decreasing, indicating that the fertility of men all over the world is decreasing. From another convenience, the concentration and vitality of sperm are also decreasing with the increase of men's age.
Slight changes have taken place in the reproductive organs. With the increase of age, middle-aged men will gradually gain weight, and with the increase of weight, too much fat will reduce the space for blood perfusion, thus causing slight changes in reproductive organs.
Hormone levels decrease and sensitivity decreases. The male hormone level reaches its peak at the age of 20-25, and at the age of 30, with the increase of age, the hormone level begins to decline slowly. Reproductive capacity will also decline slightly with age. Decreased sensitivity is also a feature of decreased reproductive capacity. After 60 years old, the average annual orgasm frequency of many people is lower than that of 30 years old 10-50 times.
To sum up, men's reproductive ability will gradually deteriorate with age, and correcting some bad living habits in time will help slow down the degradation process. Don't smoke and drink, stay up late less, work and rest regularly, strengthen psychological self-regulation, don't have mental burden, and often participate in outdoor physical exercise, which will alleviate the depression and anxiety caused by reproductive degradation.