Monday, March 13, 2017
What to Think about the Decrease in Sperm Quality
New York Times (March 12, 2017), Are Your Sperm in Trouble?, by Nicholas Kristof:
Sperm is decreasing in quality and testicular cancer is on the rise. Studies show a rapid decrease in sperm quality from 2001 to 2015. Some suggest that endocrine disruptors--chemicals found in plastics are to blame. In one study of the effect of endocrine disruptors on fish, the males became intersex and incapable of reproducing.
Human reproduction might be threatened by these developments, but scientists disagree about the scale of the problem. Some believe we are are crossing the line where the question "can we sustain ourselves?" becomes relevant. After all, endocrine disruptors mimic hormones; as such they possess the power to interfere with the biological process of becoming male in the womb.
Some have taken to avoiding plastics, including the ubiquitous sales receipts produced by thermal printers. But individual action is probably not enough. The endocrine disruptor lobby in Congress mirrors the power of Big Tobacco before the regulation of smoking became a foregone conclusion.