Men have a biological clock (and starting at this age the chimes are harder than expected) | healthy and happy

A man’s age hardly plays a role in his chances of having a healthy baby…if women are under 35 or over 40. In the middle age group, there is a “significant decrease” in the number of live births among women between 35 and 40 years if the man is 40 or older. It was written in the British newspaper “The Guardian” based on an analysis of nearly 19,000 IVF cycles by the British Human Fertilization and Embryology Authority.

Kate Bryan of the UK Fertility Network told the Guardian the findings could help educate about fertility. The findings add to the growing evidence that fertility also affects men to a large extent. This growing awareness of the impact of men on having children shows that fertility education is and remains essential. For both children and spouses who want to start a family.”

(Read more below the tweet.)

Geeta Nargond is a professor of reproductive medicine and one of four authors who contributed to the study. For a long time, she says, the responsibility for not fulfilling the shared desire to have children has fallen on the shoulders of women.


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We now know that for women in a certain age group, the age of the father is more important than previously thought.

Professor of Reproductive Medicine Geeta Nargond

Nargond shows that the eggs of young women have the ability to repair DNA damage in the sperm of older men. If the woman is older than 40, the quality of the egg is lower and the egg is less able to repair any damage to the sperm. “Interestingly, a man’s age appears to have a greater effect when a woman is between 35 and 40 years old,” Nargond said. The number of healthy children born drops from 32.8% for men under 35 to 27.9% for men aged 40 to 44. If men are older than 55, the birth rate drops further to 25 percent.

Nargend: “We know that increasing male age delays conception, reduces pregnancy rate and can lead to more miscarriages or mental disorders in the offspring. But we now know that for women in a certain age group, paternal age is more important than previously thought. “.

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Denton Watson

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