World's First IVF Baby Reaches 40

LONDON, ENGLAND - JULY 23: Louise Brown takes part in a press conference to mark her approaching fortieth birthday, at the Science Museum on July 23, 2018 in London, England. On 25th July 1978, Louise Brown became the first baby to be born using the In Vitro Fertilisation technique pioneered by British researchers Robert Edwards, Patrick Steptoe and Jean Purdy. The Science Museum in London is holding an exhibition entitled IVF: 6 Million Babies Later to celebrate the success of IVF. (Photo by Leon Neal/Getty Images)