 No, as far as I'm concerned, I mean I have the best job on the planet because anybody who gets to actually talk about their very favorite thing every single day, every single day, the thing that we're talking about is my very favorite ever. What a great job. Today we get to talk about my very favorite system, the reproductive system, and we're going to build ourselves into a pretty complicated understanding of the reproductive system, which really, it's absolutely fantastic. The way the ladies and the fellas set themselves up to pass on our genetics and make little parasites that, I mean, for whatever reason we find quite fabulous, it's a really great process. So, before we start, here's what I want to tell you. We're going to build a visual here, and it's a very complicated visual. And we're going to spend really the first six sections of this lecture building this visual. It's going to be really important that you pay attention as we build because the parts that we're going to add, like each section that we do is going to add another layer into our understanding of the overall big picture. The reproductive system is, what we're going to focus on is what happens in the ladies hormonally that enables us to carry out baby making because really we do the bulk of the baby making work, the baby making work, the growing work, that part of the work, we do the bulk of it, and that's just an anatomical phenomenon. Speaking of anatomy, I just recorded the anatomy of the reproductive system, and so if there's any part of this that you're like, I don't remember those parts, I will give you little hints to instruct you to perhaps go and watch that anatomy lecture, and that might fill in some of the blanks for you. So, deep breath and dive in to the fun of reproductive madness.