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Simon

Something weird is happening with Western men's sperm - and pollution could be responsible

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Simon

Let's talk about sperm, and more precisely Western male's sperm, because it seems male fertility is facing a sharp decline in Western nations - and environmental pollution could be responsible.

According to a study published this past summer, there may be something weird going on with men's sperm. The study found a sharp decline in sperm count between 1973 to 2011 in North America, Europe, Australia, and New Zealand where sperm counts seems to have dropped by more than 50 percent.

The study cannot show why sperm counts are declining. But the author of the study believes that various environmental factors, such as harmful chemicals, could be responsible for the steep decline in sperm counts, and worse yet, the drop doesn't seem to show any signs of slowing down.

Quote

Studies have already shown that common hormone-disrupting chemicals like bisphenol-A (BPA) and phthalates can affect sperm count and performance. [...] “We thought that maybe there would be some leveling off,” Levine says. “I mean, say we are exposed to certain chemicals or poor lifestyle. At some point it should be leveling off. And we actually see that not only is it not leveling off, but it's become steeper."

Because data from non-Western nations are either missing, not reliable or inadequate, the study couldn't show an equivalent decline in sperm counts from males in South America, Asia, and Sub-Saharan Africa.

One could be tempted to think that this study shows how Western culture, lifestyle and industrialization exposes men to more harmful chemicals than typical lifestyles in the non-Western world, but again, this study is not capable of drawing such conclusions.

Quote

“We have much less data from non-Western studies, especially in the early period,” says Levine. “And since our model requires enough data, it's difficult to assess the trends over time in the non-Western countries.”

Research out of China suggests a more recent sperm count decline. If those results hold up, they suggest that Levine's theory about pollution might be correct: Over the past 20 years, China has become more Western in terms of environmental pollutants and dietary habits.

“We can't say if there's a decline or not for non-Western countries,” he adds. “But if there is a decline it's to less extent than the steep decline that we see for Western countries.”

What do you think is causing the steep decline in sperm counts? And is it just happening in the West or is it a global problem?

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valvulaeconniventes

Perhaps a chemical component used in the production of a popular item in the household causes a decline in sperm levels? Not long ago, BPA (mentioned in the article) has been a component in making plastic containers before its harmful effects on the hormones were known. If this were the case, then hopefully the chemical is found out, before it affects greater countries (as of now studies suggest only Western countries are affected).

Pollution is also likely since the Western civilization has been urbanized for a longer time compared to Asians and Africans; could this be a late epigenetic effect we are only now seeing? This is particularly worrying due to the already declining population growth in the States. You don't really want for the older population to outnumber the younger ones by a lot, it won't be good for the economy.

Whatever it is, hopefully studies can figure it out before more severe problems occur as a result.

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Simon
On 2018-02-05 at 2:43 PM, valvulaeconniventes said:

Not long ago, BPA (mentioned in the article) has been a component in making plastic containers before its harmful effects on the hormones were known.

Yeah, don't get me started on the dangers of BPA. In a recent study, 84 percent of the teenagers had BPA in their digestive system. And when you measure for BPA in populations, teenagers have the highest levels of BPA in their urine. Just imagine what kind of consequences this could have in the near future if it's true that BPA damages our reproduction capabilities.

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chameli

I read something like this in the recent past but I cannot remember the source of information. The food we eat makes what we are. The chemicals such as preservatives and pesticides, genetically modified food etc are taking a toll on human life and reproductive power is one of the areas where worse things are happening. Sperms count in men might be declining, however, even in women conception power is also on the decline. That's what I read in a research I mentioned above.

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Sanjo
11 hours ago, chameli said:

The food we eat makes what we are.

This is so true, we really are what we eat. That's why it's so important to eat healthy food that's filled with important nutrients. Some people take better care of their cars than their own bodies - it's really mindboggling when you think about it!

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