How the pill changes everything

Hormonal contraception is something most women will use at some point during their lifetime. But the reach of the pill goes far beyond the small number of targetted effects we take it for. It affects almost every system in our body. Column inches and anecdotal conversations prove there are many questions about the pill and its effects, yet until now we have known very little about it, in part because research on our brains and our bodies was conducted almost exclusively on men. Dr Hill reveals the latest science on the pill, and how it's changing women and the world for better and for worse.