Sperm counts - a podcast by BBC World Service

James Gallagher get's behind the hype to find out if sperm counts are really falling? There are plenty of headlines telling us they are, but also scientists who disagree - he unpicks the evidence with two of them. James also gets his own sperm sample analysed and meets a couple who found the reason behind their low count was one of the leading causes of male infertility.

Further episodes of Discovery

Further podcasts by BBC World Service

Website of BBC World Service