Chenicals,
especially PCB’s should take pride of place as a causative factor.
These estrogen-mimicking chemicals have settled in places like the
Arctic and are likely to be released back into the environment with
the melting ice – another possible cause of human extinction.
We
have known about this ever since the book “Our Stolen Future”
came out in the 90’s
Humanity
at risk as sperm levels among Western men plummet to record low
RT
26
July, 2017
Chemicals,
diet, stress, and lifestyle choices have caused the sperm levels of
Western men to plummet to less than 50 percent of what they were four
decades ago, a new study has found.
The research found
that sperm in the ejaculate of men from Europe, North America,
Australia, and New Zealand fell by 1.4 percent every year between
1973 2011, leading to an overall drop of just over 52 percent.
“The
results are quite shocking,” said
study co-author Hagai Levine, an epidemiologist from the Hebrew
University of Jerusalem, according to Reuters. He called the results
an "urgent
wake-up call."
Levine
added that while fertility treatments such as IVF can sometimes offer
solutions to the procreating problem, little is being done to address
the root of the issue - an overall general decline in men's health.
Poor
sperm counts have also been associated with testicular cancer,
increased male mortality rates, children born with one or both
testicles missing, and the onset of male puberty, according to the
researchers.
"Eventually
we may have a problem, and with reproduction in general, and it may
be the extinction of the human species,” Levine
told the BBC.
Environmental
influences, heat, lifestyle factors, diet, stress, smoking, and
obesity - both prenatally and in adult life - have all been“plausibly
associated” with
the decline, according to the study.
“Therefore,
sperm count may sensitively reflect the impacts of the modern
environment on male health throughout the life course,” the
paper reads.
In
particular, the paper notes, chemical exposures or maternal
smoking “during
critical windows of male reproductive development may play a role in
prenatal life, while lifestyle changes and exposure to pesticides may
play a role in adult life.”
Published in
the medical journal Human Reproduction Update, the “rigorous
and comprehensive” research
analyzed data from 185 studies. Researchers from Israel, Denmark, the
US, Brazil, and Spain took part in the study.
The
trend has not been recorded among men in Africa, Asia, or South
America, though the authors concede that fewer studies have been
carried out in those regions.
The
study’s authors have called for urgent work to narrow down the
causes for the decline in sperm levels among Western men.
“This
definitive study shows, for the first time, that this decline is
strong and continuing,” said
one of the study’s authors, Professor Shanna Swan of the Icahn
School of Medicine at Mount Sinai.
From back in 2011
Melting Arctic ice releasing banned toxins, warn scientists
Unknown
amount of trapped persistent organic pollutants poses threat to
marine life and humans as temperatures rise
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