Urgent research needed: the decline of testosterone and sperm in men.
The decline of testosterone and sperm in healthy males.
There is a measured decline of approximately 22% of testosterone in healthy males ages 45 to 80 from 1987 through 2004. This drop is affected by pesticides (such as glyphosphate-based herbicides), BPA, common products containing phylates, pharmaceuticals, high glycemic diets, sleep apnea, and stress.
Interestingly, what I consider the major influence and most evident change affecting sperm levels in the last 25 years is the high exposure to electromagnetic fields from excessive cell phone use and wireless exposure. Yet, often this is never mentioned as another affect for the decline.
The resulting conditions are hypogonadism and correlated with inflammatory vascular disease adding to the progression of coronary disease. Testosterone is very important since it lowers the risk for cardiovascular problems, lowers blood sugar and improves the vascular system.
At the same time sperm counts, according to a major review of scientific studies, have plunged by nearly 60 per cent in just 40 years among men living in the West, pointing towards the modern world causing serious damage to men’s health. The rate of decline shows no sign of leveling off.
Pesticides, hormone-disrupting chemicals, diet, stress, smoking, and obesity have all been plausibly associated with the problem, also associated with a range of other illnesses such as testicular cancer and a generally increased mortality rate.
The journal Human Reproduction Update includes researchers from Israel, the US, Denmark, Brazil and Spain finding total sperm count had fallen by 59.3 per cent between 1971 and 2011 in Europe, North America, Australia and New Zealand. Sperm concentration fell by 52.4 per cent.
“Sperm count and other semen parameters have been plausibly associated with multiple environmental influences, including endocrine disrupting chemicals, pesticides, heat and lifestyle factors, including diet, stress, smoking and body-mass index,” the paper said.
One of the team, Professor Shanna Swan, of the Icahn School of Medicine at Mount Sinai, New York, said falling sperm counts had been “of great concern” since they were first noticed about 25 years ago, adding, “This definitive study shows, for the first time, that this decline is strong and continuing... The fact that the decline is seen in Western countries strongly suggests that chemicals in commerce are playing a causal role in this trend.”
One expert commenting on the study said it was the “most comprehensive to date”, and described the figures as “shocking” and a “wake-up call” for urgent research into the reasons driving the fall with redoubled efforts, and not to be non-presumptive as to the causes.
Professor Daniel Brison, an expert in clinical embryology at Manchester University who was not involved in the review, said, “An unanswered question is whether the impact of whatever is causing declining sperm counts will be seen in future generations of children via epigenetic or other mechanisms operating in sperm."
Science has also examined the dramatic increase of exposure to electromagnetic fields and its effects on genetic health of sperm. Probably even more significant are the effects on eggs of females. In Katie Singer's book, An Electronic Silent Spring, she cites several references of studies documenting direct correlation between sperm health and EMF's.