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Men Are Affected By the Biological Clock As Well, Researchers Find (theguardian.com)

An anonymous reader quotes a report from The Guardian: A new study reveals that a couple's chances of having a baby fall with the man's age, to the point that it can have a substantial impact on their ability to start a family. Laura Dodge, who led the research at the Beth Israel Deaconess Medical Center and Harvard Medical School in Boston, said that couples should bear the findings in mind when planning a family. "When making this decision, they should also be considering the man's age," she said. Scientists have long known that a woman's chances of conceiving naturally drop sharply from the age of 35, but fertility research has focused so much on women that male factors are less well understood. To investigate the impact of a man's age on a couple's chances of having a baby, Dodge and her colleagues studied records of nearly 19,000 IVF treatment cycles in the Boston area between 2000 and 2014. The women were divided into four age bands: those under 30, 30-35 year-olds, 35-40 year-olds, and those aged 40-42. The men were divided into the same age brackets with an extra band for the over 42s. Some of the couples had received up to six cycles of IVF. Dodge then looked at how age affected couples' chances of having a live birth. As expected, women in the 40-42 age bracket had the lowest birth rates, and for these women the male partner's age had no impact. But for younger women the man's age mattered. Women aged under 30 with a male partner aged 30 to 35 had a 73% chance of a live birth after IVF. But that impressive success rate fell to 46% when the man was aged 40 to 42. Whether they can hear it or not, the biological clock ticks for men too.

5 of 209 comments (clear)

  1. Need more data by GeekWithAKnife · · Score: 3, Insightful


    Have we factored in lifestyle into this as well?

    Something tells me that men that do not smoke, don't indulge in alcohol often or at all and keep fit will have better results...(seems obvious right?)

    The men I know at those later ages seem to have given up on a healthy lifestyle at least in terms of fitness. Also family stress factors in.

    More data needed. Time to crowdfund a study on the subject?

    --
    A 'singular oddity' is an event that cannot be explained and only happens when you are alone.
  2. Re:Younger Sperm Donors by BESTouff · · Score: 3, Insightful

    If a woman has a partner 10+ years older than her, chances are he's rich enough to afford those extra rounds.

    I'm exactly 10 years older than my SO, that smart gorgeous girl and mother of my lovely daughter, and rest assured she didn't choose me for my wealth.

  3. Re:Younger Sperm Donors by Dog-Cow · · Score: 1, Insightful

    If you stop making stupid assumptions, people might start to like you. Don't bet on it, though.

  4. Re:Quality by goose-incarnated · · Score: 4, Insightful

    Rates of genetic disease are also much higher with older dads, and the father being 40 or older is the main known risk factor for autism.

    It's a narrative being sold because men are checking out. The odds are so slightly higher than they are almost insignificant.

    The "story" being sold is due wholly to reality not matching feminist ideology, and almost all of these stories about how men have a biological clock are hyped to get men to play the game again.

    --
    I'm a minority race. Save your vitriol for white people.
  5. Re:Younger Sperm Donors by Anonymous Coward · · Score: 4, Insightful

    That's a load of crap right there. First off, why should men have to adjust to women being selfish?

    Secondly, those "losers" aren't necessarily losers, they're the 90% of men that aren't the top 10%. Yes, some of them are losers, but most of them aren't. She's looking for a soulmate, which is great for her, but let's be honest, why should men have to do all the work to earn her stamp of approval? It takes men a significant amount of effort to get a date, but women pretty much just have to say yes and show up.

    She definitely is destroying relationships. That's what women do. At virtually every stage of the process women kill a disproportionate number of relationships. Claiming otherwise is rather silly, we know they're the ones that generally say yes or no to requests for dates and that they initiate divorces more than twice as often as men do.

    What's more, if you haven't actually had to do anything to earn or even deserve to be loved, then you're not going to feel a meaningful attachment to the person you're with. Women get all this messaging about how wonderful they are and how they should have Mr. Right or Prince Charming and they don't. Mr. Right is married to Prince Charming because they got sick of dealing with the bullshit.

    Eventually, they hit the wall because men that are "Mr. Right" and haven't given up on women completely are either already taken by somebody else or they've got the financial means to date 20 yearolds and leave the older women to their own devices. Which is karma. You can't treat men like that while you're young and expect that men will treat you better when you're old.