Yes. Up to four out of ten men could be affected according to recent reports. The chemicals which are causing the problems are used in the manufacture of cosmetics, plastics, food cans and household furniture. They work by imitating the female hormone oestrogen, and exposure in the womb is thought to lead to male reproductive abnormalities, producing such symptoms as poor quality sperm and testicular cancer. The average sperm count of a European man has dropped by 25% over the last 25 years and around 27,000 British couples seek fertility treatment each year, an increase of 55% in five years.