Gentlemen, rev those engines of anxiety: Male infertility rates are on the rise, as are those for testicular cancer. Meantime, a global effort to improve one of the most common forms of male contraception may provoke some uncomfortable discussions about masculine misconceptions.
When there’s a break in the Major League Baseball championships, or the NCAA or NFL football regular season football games, or the NBA basketball contests, see how much the buds can be startled by researchers’ latest medical worry about men, as summarized in a summer Newsweek report:
Sperm levels—the most important measurement of male fertility—are declining throughout much of the world, including the U.S. [A review of] thousands of studies … concluded that sperm concentration had fallen by 52 percent among men in Western countries between 1973 and 2011. Four decades ago, the average Western man had a sperm concentration of 99 million per milliliter. By 2011, that had fallen to 47.1 million. The plummet is alarming because sperm concentrations below 40 million per milliliter are considered below normal and can impair fertility.