Men are becoming increasingly less fertile. A study found that sperm counts in the West had dropped by nearly 60% in the past 40 years. According to that study, if sperm counts continue to decrease at this rate, they are set to reach zero by 2045.

What is hijacking our fertility, and could we be on the brink of extinction?

In this episode, host Dermot Murnaghan is joined by Shanna Swan, an environmental and reproductive epidemiologist who explains the causes of this reproductive crisis; Kate Brian from Fertility Network UK talks through the effects that infertility can have on people; and sperm donor Kyle Gordy describes the increase in demand for his services.