““A recent study documented a 52 percent decline in sperm concentration and a 59 percent decline in total sperm count in men over a nearly forty-year period ending in 2011 (Levine et al. 2017). A decline in sperm count and concentration leads to a decreased probability of conception. The authors of the study speculated that increased exposure to endocrine disrupting chemicals in the environment may be partly to blame for this trend.””