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Sperm Counts Among Western Men Have Halved In Last 40 Years, Says Study (theguardian.com)
New submitter flote shares a report from The Guardian: Sperm counts among men have more than halved in the last 40 years, research suggests, although the drivers behind the decline remain unclear. The latest findings reveal that between 1973 and 2011, the concentration of sperm in the ejaculate of men in western countries has fallen by an average of 1.4% a year, leading to an overall drop of just over 52%. The study, published in the journal Human Reproduction Update by an international team of researchers, drew on 185 studies conducted between 1973 and 2011, involving almost 43,000 men. The team split the data based on whether the men were from western countries -- including Australia and New Zealand as well as countries in North America and Europe -- or from elsewhere. After accounting for factors including age and how long men had gone without ejaculation, the team found that sperm concentration fell from 99 million per ml in 1973 to 47.1 million per ml in 2011 -- a decline of 52.4% -- among western men unaware of their fertility. For the same group, total sperm count -- the number of sperm in a semen sample -- fell by just under 60%.
Obesisty?
“Common sense is not so common.” — Voltaire
Ha! {wipes off mouse}
The Russians have won. They have made the world a cesspool of distrust, greed, fear and hate.
Have they done a study to determine if there has been a balancing increase in sperm production by western women?
E Proelio Veritas.
Heck, my wife gets pregnant if I look at her too long.
I don't think so. You might want to get a paternity test done on "your" kids.
"Millennials have this really disgusting complexion"
Maybe, but you can't actually tell because of their tats.
The communist plot to dilute our precious bodily fluids has succeeded !
That is the only logical explanation for this. Women are fucking impossible to deal with anymore. They cannot be satisfied no matter how much money you make, how much you work out, how much stuff you have, or how popular you are. You're never good enough.
It gets to the point that you don't even want to reproduce with them anymore, and so your body's like "whatever, Ima shut down this sperm factory down here and use my energy to get better at minecraft instead."
Not long ago a friend of mine and I were having a beer and he asked me, "you know, my wife thinks you don't like her; you never talk to her and blow her off when she tries to talk to you." And my response was, "she's right." I actually loathe the idea of interacting with females in any capacity. It's actually pretty fucking great, because it's so much less stress in my life. I'm not constantly having to walk on eggshells and jump through hoops.
You missed the important part, no doubt on purpose: it doesn't matter if it is 50 or 100 million.
SRSLY? Just out of curiosity, are you a pediatrician or OB/GYN and if so - or even if not so, give me the cites to illustrate that which you are so certain of. The idea that a male producing half of the sperm of another especially 50 million per ejaculate is as fertile goes against everything I have been taught and experienced. Your expertise in this matter is requested.
Thank you in advance for providing this information. Here is something that I know, and am awaiting for your debunking of the Mayo Clinic http://www.mayoclinic.org/dise...
39 million sperm per ejaculate is considered as a low sperm count. the present day average of 50 million is getting close, and will perhaps reach that level in the future. Then again, I believe that you actually think that if a male produces even one sperm, the woman will beome pregnant. I'll respectfully ask for the debunking of the acrosome reaction in whic many sperm attach them selves to the zona pellucida and create enzymes that allow the one sperm that does the actual insemination to pierce the egg and finish the fertilization process.
The shepherds did so well protecting the flock that the sheep no longer believed that wolves existed.
Estrogen mimic plasticizers are all over the environment. They're in your clothes, your bottled water, your food, the chairs you sit in, ETC.
They would be my first guess as to the reason for many abnormalities, and certainly for something involving sperm counts.
I think we've pushed this "anyone can grow up to be president" thing too far.
In other words it makes little practical difference if it's inherited as it derives from circumstances which walk hand-in-hand with heredity.
Requiem for the American Dream
More important question, are men with lower sperm counts more of less happy than men with higher sperm counts.
Weogh! That was a hard to parse as a Sarah Palin speech, so I'll just hit on the basics.
Your noting that a lot of men avoiding having children is part of another trend Men are becoming less interested in marriage, and oddly, women are becoming more interested than a few years back. http://www.huffingtonpost.com/... And given some other trends, the numbers might decrease yet more. Certainly given that college campuses are trending a 10 percent gape between female and male and growing, http://www.pewresearch.org/fac... there wil be a lot of educated women - who probably do not want to marry lesser educated men - who are going to have an issue with marriage and reproducing.
There might be some relationship between lower testosterone levels and men dropping out of society and marriage and children - I don't know enough to make that presumption. Generally when you ask those men who choose to opt out, thier ansers tend to be that marriage and relationships are just not a good deal for men. They do make an argument that is fairly convincing and rational. But once we get into social matters it is hard to get definitive causes and effects.
The shepherds did so well protecting the flock that the sheep no longer believed that wolves existed.
Nice weasel attempt, but all you have to do to prove your claim is correct is cite the plummet in conception rates.
Can you show me where I claimed the conception rates have plummeted?
But let's talk about conception rates since you fixate on it. We'll ignore that it isn't used too often in humans, it seems to be of maximum interest in bovines.
In humans the term pregnancy rate is used. It is also used a lot for IVF, which has a much lesser success rate than normal sex, so it's a bad term overall, and not a very good measure of sperm count and it's relationship to pregnancy. https://en.wikipedia.org/wiki/...
Regardless to try to relate to your conception rate, any number we might come up with is difficult, especially in light of say, the USA's fertility rate hivering at just around replacement rate https://en.wikipedia.org/wiki/...
So are couples using birth control? Is age a factor? This is unclear, and there are political issues as well. Some articles about this, but not conclusive and hard to dig numbers out of, and I'm certain that they are hedging their bet. There is no doubt that most research on male infertility is mostly about women, as strange as that seems.
But without your trying to wiggle out of this, if you have an issue with the Mayo clinic's definition of male infertility, and with the US fertility rate, and with the sperm count heading toward that definition, then argue with them.
I've given an internet troll neough of my time.
The shepherds did so well protecting the flock that the sheep no longer believed that wolves existed.
Actually Chuck Norris died 10 years ago, but the Grim Reaper shits vertebrae at the mere thought of coming to get him.
If the trend continues, there will be a day when Western Man is no longer able to produce sperm at all.
But fear not, humanity! Thanks to frozen sperm, bulls that died years ago are still fathering calves. With my high IQ and 6' 2" manly-man size, I am willing to contribute now to save First World Man from extinction.
Charlize Theron...honey...I'm afraid you'll just have to lean into the strike zone take one for the team. The future of the world will be in your hands. Literally.
Inbox me, honey. Let's get this done!
I've calculated my velocity with such exquisite precision that I have no idea where I am.
Protocol here is to (1) cauterise both ends of the severed vasa, and (2) perform a sperm count 3 months after operation, before authorising the cessation of the contraception already in use.
That strongly suggests that your practitioner wasn't using any sort of cauterisation, which does have a significant failure rate. If you informed the second practitioner of the failed first vasectomy (they'd have seen the scars anyway), then not performing the cauterisation step is pretty well down the road to malpractice. Normally, I'm not one for promoting "sue the doctor" at any event, but in this case it does strike me as being a pretty basic failure.
In the UK, using the [cut, remove cm-length, cauterise] protocol, spontaneous reconnection rates are under 1%, which would suggest you're a 1-in-10,000 event. If your practitioners are using a proven protocol, and doing it properly.
Birds are not dinosaur descendants;birds are dinosaurs, for all useful meanings of "birds", "are" and "dinosaurs"