Studies concluded that sperm counts fell by nearly half between 1938 and 1990. Other data tracked a worldwide decline in the ratio of male to female births since 1950. Boys have increasingly been found to suffer from a complex of genital abnormalities, from a deformity of the penis to undersize and undescended testicles, as well as rising rates of testicular cancer. Tests have shown lower sperm quality in the agricultural Midwest. Couples are experiencing more and more trouble conceiving.
Scientists have repeatedly suggested that these troubles arise from the sharp rise over the past two generations of environmental toxins that saturate our everyday lives, especially those chemicals that disrupt our hormones (generally called “endocrine disruptors”), from pesticides on our strawberries to BPA (bisphenol-A) in our baby bottles.
Wednesday, June 29, 2011
Declining Sperm and The New York Times by Alice Shabecoff