Can old boys affect fertility?
With the development of society and the improvement of people's living standards, more and more couples begin to delay childbearing. However, for men, age may become a factor affecting fertility. The following will discuss the influence of boys' advanced age on fertility from various aspects.
The decline of sperm quality and quantity
The quality and quantity of male sperm usually decline gradually with age. The study found that compared with young men, the number and vitality of sperm of men over 40 years old were significantly reduced, and the proportion of deformed sperm was also relatively increased. This situation may lead to fertility disorders, including infertility and failure of assisted reproductive technology.
In addition, a study conducted in Sweden found that when a man is over 45 years old, his children's risk of autism and schizophrenia is significantly increased. This is related to the quality and quantity of male sperm, which affects the health of offspring.
Although the impact of age on sperm quality and quantity varies from person to person, the overall trend shows that older boys may reduce fertility.
Decreased testosterone levels
With the increase of age, the testosterone level in men will gradually decline. Testosterone is a male sex hormone, which is crucial to the production of sperm and the regulation of sexual desire. When testosterone levels are low, men may experience problems such as decreased libido, erectile dysfunction, and reduced sperm count, thus affecting fertility.
One study found that testosterone levels in men over 40 were significantly lower than those in men under 30. This may affect the formation, quality and vitality of sperm, thus reducing male fertility.
Increased risk of genetic abnormalities
Older men are also associated with increased risk of chromosomal abnormalities and genetic diseases. Age may lead to an increase in the incidence of chromosomal abnormalities in sperm, which in turn increases the risk of chromosomal diseases in offspring.
For example, when men over 40 years of age give birth, their children have a significantly increased risk of Down syndrome. This is due to the increased probability of chromosome abnormalities in sperm, especially the abnormality of chromosome 18 in sperm, which leads to abnormal chromosome number at birth.
Therefore, older boys will also increase the risk of genetic abnormalities, which will affect fertility and the health of offspring.
Impact of lifestyle and health status
Older men are usually accompanied by changes in lifestyle and increased health problems, which may indirectly affect fertility. For example, age growth will lead to weight gain, irregular diet and lack of exercise, which will have a negative impact on fertility.
In addition, older men are more likely to suffer from reproductive system diseases, such as prostate diseases and abnormal sex hormones, which will also affect fertility.
In general, the old age of boys may affect their fertility. The decline of sperm quality and quantity, the decline of testosterone level, the increased risk of genetic abnormalities, and the impact of lifestyle and health status may lead to the decline of male fertility. Therefore, it is very important for couples who plan to delay childbearing to understand and pay attention to the influence of male age on childbearing.
