Dr Shanna Swan, a professor of environmental medication and public well being at Mount Sinai college of drugs in New York Metropolis, talks to Rachel Humphreys about declining fertility in males. Over the previous 40 years, common sperm counts amongst western males have greater than halved.
She tells Rachel how sure chemical compounds can intervene with reproductive well being. Phthalates, used to make plastic gentle and versatile, are of explicit concern. They decrease testosterone, which might have an effect on sperm depend, although they’re unhealthy for ladies, too, and might improve the chance of miscarriage and untimely start. The reproductive disaster is critical, she says. We have to attempt to restrict our publicity to those chemical compounds in any other case human survival might be threatened.