 Well, I think it's good to think about our ancestral environment and the necessity of fasting. All right? Now fasting is something we all do overnight, every night, while we sleep. All right? And it's a very natural part of our physiology. But think about the natural environment. Here's a quote from a Jesuit missionary who was among the Indians of Canada in the 1630s. And he said, I saw them in their hardships and their labors suffer with cheerfulness. I found myself with them threatened with great suffering. They said to me, We shall be sometimes two days, sometimes three, without eating for lack of food. Take courage, Chahine, let thy soul be strong to endure suffering and hardship. Keep thyself from being sad, otherwise thou wilt be sick. See how we do not cease to laugh, although we have little to eat. All right? So it's very common among hunter-gatherers you might go three days without food. All right? And it's similarly with animals. All right? Animals don't have food available every day. What happens to our bodies when we fast like that? Well, we can actually see this in cells. If you put cells in culture and you starve them for three days, what happens? The cells just shrink in size. All right? So all of these cells, they cannibalize themselves and they shrink in size, but they're still fully functional. So everything the larger cell can do, the smaller cell can do. All right? And that's how we maintain full functionality. Our bodies, after a fast, we're designed to cannibalize ourselves, shrink our bodies, but we retain full functionality. So we can still go out and hunt, fight, whatever we need to do. And this is very basic to biology. And what's the implication for us? In fact, it's crucial to our health to go through this fasting and feeding cycle because when we're fasting and cannibalizing, that's actually a very smart process. What happens? Our bodies look around for everything in our bodies that we don't need, like bacteria, viruses, like damaged mitochondria, damaged things. We don't cannibalize the healthy tissue. We cannibalize the unhealthy tissue. If you never fast, you're never clearing up those infections, those damaged materials. All right? And then what happens when you feed, you reconstruct everything and you grow yourself back. All right? And when you feed, what's the point of feeding? You need to give yourself the nutrition. You need to rebuild all that tissue. And the mistakes people make in diet, they never fast, so they're never cleaning things up. And then when they feed, they're eating things like those cookies that don't give them the nutrients they need to rebuild whatever they cannibalized. And so they're gradually breaking down their bodies and damaging their health.