Although men have a longer fertility span than women, lasting almost throughout their lives, there is still an optimal age range from a eugenic perspective. Taking sperm quality as an example, although the sperm of older men does not age and has a higher density, its motility has shown a significant decline. The number of immobile and abnormal sperm has increased by 20%, and the metabolism of sperm has also slowed down. This leads to the production of a considerable amount of waste, which can have adverse effects on offspring.
In addition, male hormone levels also start to decline after the age of 35, with a 1% reduction in testosterone secretion every year. Therefore, just like women, men also have a reproductive biological clock, although it is more flexible for men.
According to the rhythm of men's reproductive biological clock, when is the best time for men to become fathers? Surveys have found that children born to fathers between the ages of 30-35 score the highest in intelligence tests. Therefore, the conclusion is that men aged 30-35 have the strongest vitality in their sperm and are most suitable for reproduction.
