Serious reduction in sperm counts among western men, public health crisis?

ger12

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The big question is why and what are the implications?

Numerous possibilities have been suggested, from links to body weight, a lack of physical activity, smoking, and exposure of pregnant women to chemicals found in myriad household products (known as endocrine disruptors). Are we facing a huge public health crisis as suggested by the experts?

Rates of testicular cancer are on the rise, and men who are concerned about their sperm count and who wish to have children are being advised not to delay.

"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."
https://www.theguardian.com/lifeandstyle/2017/jul/25/sperm-counts-among-western-men-have-halved-in-last-40-years-study
 


Mad as Fish

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The microwave smog we are creating is another possibility, but let's not talk about that eh!
 
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LookWhoItIs

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The big question is why and what are the implications?

Numerous possibilities have been suggested, from links to body weight, a lack of physical activity, smoking, and exposure of pregnant women to chemicals found in myriad household products (known as endocrine disruptors). Are we facing a huge public health crisis as suggested by the experts?

Rates of testicular cancer are on the rise, and men who are concerned about their sperm count and who wish to have children are being advised not to delay.

"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."
https://www.theguardian.com/lifeandstyle/2017/jul/25/sperm-counts-among-western-men-have-halved-in-last-40-years-study
Chlorinated chickens?
 
D

Deleted member 17573

The professor who co-authored the study explained that a man's future sperm count is determined while he is still in the womb. So is it possibly a consequence of women delaying having children until they are older?
 

GDPR

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Do travellers and Gypsys in the west still have large families ? And welfare dependent families ? I'm talking about those here for generations , not blow ins. Has their sperm counts been checked and cross referenced?

Or religious groups which have been established for generations?

I'd say lack of kids is because responsible people can't afford them ...

Low sperm counts could then have psychological factors involved
 

ger12

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The professor who co-authored the study explained that a man's future sperm count is determined while he is still in the womb. So is it possibly a consequence of women delaying having children until they are older?
I can't see that.

HPV might very well be a factor.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3739240/

There's also Environmental causes:

"Sperm production or function can be affected by overexposure to certain environmental elements, including:

Industrial chemicals. Extended exposure to benzenes, toluene, xylene, herbicides, pesticides, organic solvents, painting materials and lead might contribute to low sperm counts.
Heavy metal exposure. Exposure to lead or other heavy metals also can cause infertility.
Radiation or X-rays. Exposure to radiation can reduce sperm production. It can take several years for sperm production to return to normal. With high doses of radiation, sperm production can be permanently reduced.
Overheating the testicles. Elevated temperatures impair sperm production and function. Although studies are limited and are inconclusive, frequent use of saunas or hot tubs might temporarily impair sperm count.

Sitting for long periods, wearing tight clothing or working on a laptop computer for long stretches of time also might increase the temperature in your scrotum and slightly reduce sperm production."
http://www.mayoclinic.org/diseases-conditions/low-sperm-count/basics/causes/con-20033441
 
D

Deleted member 17573

I can't see that.

HPV might very well be a factor.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3739240/

There's also Environmental causes:

"Sperm production or function can be affected by overexposure to certain environmental elements, including:

Industrial chemicals. Extended exposure to benzenes, toluene, xylene, herbicides, pesticides, organic solvents, painting materials and lead might contribute to low sperm counts.
Heavy metal exposure. Exposure to lead or other heavy metals also can cause infertility.
Radiation or X-rays. Exposure to radiation can reduce sperm production. It can take several years for sperm production to return to normal. With high doses of radiation, sperm production can be permanently reduced.
Overheating the testicles. Elevated temperatures impair sperm production and function. Although studies are limited and are inconclusive, frequent use of saunas or hot tubs might temporarily impair sperm count.

Sitting for long periods, wearing tight clothing or working on a laptop computer for long stretches of time also might increase the temperature in your scrotum and slightly reduce sperm production."
Low sperm count Causes - Mayo Clinic
I have no doubt it will be found to be multi-factorial.
 

silverharp

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probably related to dropping testosterone
 

Congalltee

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The world is overpopulated already, so it's hardly a bad thing. There's plenty of people in Africa and Asia who'll happily replace the declining population in western countries. If only we could send bigots the other way.
 

GDPR

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Seems that white societies are the most affected. And I surmise it is because of female hormones in the water supply because of oral contraception.
 

Odyessus

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Seems that white societies are the most affected. And I surmise it is because of female hormones in the water supply because of oral contraception.
That seems to me to be a very reasonable hypothesis. I wonder did the scientists check this out?
 

Dame_Enda

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The processed food diet of the west may be a factor. Obesity may be a factor. Queen Annes 13 miscarriages may have been obesity related according to programme I saw years ago.
 
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Gurdiev77

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The big question is why and what are the implications?

Numerous possibilities have been suggested, from links to body weight, a lack of physical activity, smoking, and exposure of pregnant women to chemicals found in myriad household products (known as endocrine disruptors). Are we facing a huge public health crisis as suggested by the experts?

Rates of testicular cancer are on the rise, and men who are concerned about their sperm count and who wish to have children are being advised not to delay.

"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."
https://www.theguardian.com/lifeandstyle/2017/jul/25/sperm-counts-among-western-men-have-halved-in-last-40-years-study
Built in obsolescence ?
 

Zapped(CAPITALISMROTS)

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[video=youtube;AcLiwsjvj04]https://www.youtube.com/watch?v=AcLiwsjvj04[/video] :rolleyes:
 


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