Post Date April, 15 2023
After menopause, women lose their ability to ovulate and therefore lose their fertility. Men, on the other hand, can maintain their fertility for a long time. For the issue of male fertility, many examples, scholars' research experiments, and analysis statistics strongly demonstrate that there is no age limit for male fertility. However, as men age, the quality of semen is poor, often leading to early miscarriage. The children they give birth to have a higher probability of developing dementia and deformities, which also affects the quality of the next generation.
The Max Planck Research Center in Munich conducted an interesting experiment on the issue of men's reproductive age. They selected 20 grandfathers aged 60-89 and 20 fathers aged 24-33 for comparison. After placing the sperm and vole eggs of these two groups of men together and adding some enzymes, it was found that both groups had a binding rate of 54%, indicating that the sperm of the elderly do not age. Further analysis of the semen of the two groups of men revealed that the grandfather group had an average sperm density of 100-200 million per milliliter, while the father group had only 0-7.8 billion. The research conducted by Professor Xueling from Hamburg also yielded the same results. He also found that although the density of sperm in the semen of elderly people is relatively high, their motility is significantly reduced. In addition, the concentration of fruit esters required for sperm metabolism is also reduced, resulting in an increase in metabolic waste.
How to determine a man's "youth level" clinically? At the symposium on men's physiological aging held in Berlin, it was pointed out that the hardness of the testes, the frequency of sexual intercourse, and the physical condition of the whole body (such as hypertension, diabetes, heart disease or asthma) should be considered. When necessary, blood should be drawn to measure the concentration of male hormones as a supplement. From the curves drawn by thousands of clinical observations, the age of 31 should be the peak of male "youth level".
Another questionnaire survey found a close relationship between the sexual life status of elderly people and marriage. Only 7% of 101 single elderly people have sexual activity. Among the 149 elderly people with partners, 54% still maintain sexual activity around 1-3 times a week. It gradually decreases after the age of 75. The key here is that men's sexual interests are "sharpened and sharpened", and those who are sexually active in their youth are better able to maintain their sexual life in old age.
