So in this part of the conversation I want to talk about exercise, nutrition, fasting, lifestyle, sleep, environmental factors. And the first question is why does muscle matter as a woman in particular. >> Muscle matters because it helps your brain produce more neurons and that's super important for brain health.As far as protection as we age, it's directly correlative to the amount of muscle that we have. And if you have something like PCOS or endometriosis, it's even more important for you because buildin ...