When does male fertility decline? Men with late children

Robert DeNiro and Al Pacino welcome babies despite their age.  Do humans have biological clocks?  (Pictures: Getty Images)

Robert DeNiro and Al Pacino welcome babies despite their age. Do humans have biological clocks? (Pictures: Getty Images)

Congratulations are in order for two leading men in Hollywood. Al Pacino, 83, welcomes a new baby with his 29-year-old girlfriend, Noor Alfalah, while Robert De Niro, 79, has just introduced the world to her seventh child, her first with decades-long partner Tiffany Chen. Pacino and De Niro may have children, but their advanced age is perplexing: TO DO men have biological clocks that impact their fertility?

When it comes to fertility, the focus is on a woman’s age, with studies suggesting that fertility begins to decline in the 30s, particularly after 35. Dr. Jamie Grifo, director of the NYU Langone Fertility Center and division director of reproductive endocrinology and infertility in the department of obstetrics and gynecology at NYU Grossman School of Medicine, previously told Yahoo Life: “Even with reproduction, it is very difficult to have a pregnancy after 45 – this is because the number of eggs and the quality of these eggs is very low.

Still, men who have a younger partner don’t have to worry enough as much about their own age when it comes to having a biological child – at least, to some extent. Fertility do decline in men as they age, but not as dramatically as in women – and for different reasons.

Reproductive endocrinologist Dr. Jane L. Frederick told Yahoo Life that men over 40 are 30% less likely to conceive than younger men under 30. The data also showed that it took older men longer to get their partner pregnant – a fivefold increase compared to men under 25.

Male fertility is an understudied area, but some findings suggest that male biological clocks have a significant impact on the likelihood of a successful pregnancy. A 2017 study from Beth Israel Deaconess Medical Center and Harvard Medical School, for example, found that the chances of live birth decreased in older men, even if their partners were younger women.

While men often can have biological children much older than women, their fertility is always influenced by age.

Age impacts one’s sperm health, says Dr. T. Mike Hsieh, director of the UCSD Men’s Health Center and professor of urology, who notes that “increasing paternal age is associated with decreased sperm count, sperm quality, sperm volume, testosterone and ability for sexual activity or erectile dysfunction.

But one of the reasons for the decline may have to do with the health of an individual as a whole, says Dr. Paul Turek, a urologist and male fertility expert. The older a man, the more likely he is to be exposed to certain environmental factors or to develop health conditions that affect fertility by affecting the DNA package of his sperm.

“Eggs try their best to ‘repair’ DNA soon after fertilization, but if the damage load exceeds the egg’s ability to repair it, there will be no pregnancy or possibly a miscarriage. layer,” he said. .

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