Male infertility refers to couples living together without taking contraceptive measures for more than two years and having no children. The woman's examination is normal, while the man's examination is abnormal. There are many causes of male infertility, with abnormal semen as the primary cause. The number of sperm often decreases (sperm count<20 million/mL), and the quality of sperm is poor, with low motility and the appearance of abnormal sperm; Secondly, there are sexual dysfunction and reproductive organ diseases.
Traditional Chinese medicine refers to this disease as' no offspring ', which is believed to be related to the congenital origin of the kidney, the acquired origin of the spleen, and the deficiency of the vital energy and blood essence of the Ren and Chong meridians. Hand massage has the functions of tonifying the kidney, strengthening the spleen, and regulating the flow of energy, thus it has a certain therapeutic effect on treating infertility.
The latest research results from American scientists show that the "reproductive clock" in men's bodies can cause their sperm quality to decline with age, thereby increasing the risk of infertility or abnormal offspring.
Scientists from the University of California, Berkeley, and Lawrence Livermore National Laboratory reported that they conducted a study on 97 males aged between 22 and 80.
Their previous research results showed that as men age, their sperm count decreases and they lose the ability to spontaneously move in a straight line, leading to a decrease in reproductive ability.
Scientists subsequently focused on studying the genetic damage and mutations in the sperm of the aforementioned research subjects, and reported the results in the new online edition of the Journal of the National Academy of Sciences in the United States. They found in a new study that as men age, DNA (deoxyribonucleic acid) breaks in their sperm increase. Scientists point out that this result means that men who wait until they reach old age to have children not only have a risk of infertility, but also an increased risk of genetic problems in their children.
We all know that women have a biological clock. Our research shows that men also have a biological clock, just different from women. Men's reproductive ability and potential to have healthy offspring seem to change gradually rather than suddenly, "said Eskanazi, a scientist at the University of California, Berkeley who participated in the research
Scientists point out that understanding the consequences of being a father's age is becoming increasingly important. In the United States, more and more men tend to postpone the age of fatherhood. According to statistics, since 1980, the number of American men who became fathers between the ages of 35 and 49 has increased by nearly 40%, while the number of men who became fathers before the age of 30 has decreased by 20%.