Hormones affect everyone and everything: from our skin, to stress, to sports. But for most of us, they're still a mystery. Even the way we talk about hormones makes no sense. ("She's hormonal.") So let's clear some things up. Each week, Rhea Ramjohn is asking scientists, doctors, and experts to break it all down for us. And this season? We're talking about birth control. Season 2 launches Oct 13 with eight weekly episodes.