On 25th July 1978, 40 years ago, the first baby conceived using in vitro fertilisation - IVF - techniques developed to help people who couldn't have children naturally, was born. Her name was Louise Brown, and she owes her existence to the pioneering efforts of Cambridge embryologist Bob Edwards, research nurse Jean Purdy, and Manchester-based gynaecologist Patrick Steptoe. Together, this team laid the foundations of the techniques that are now used all over the world to help people to conceive, and we're looking at the science of fertility treatment, telling their story and talking to some of... Like this podcast? Please help us by supporting the Naked Scientists