Ali Shivkar on Instagram: "When you first start lifting, your muscle fibers are small and only have a few command centres called nuclei. To grow, your body has to work incredibly hard to add new nuclei to the fiber. This process takes months of consistent training. But here is a biological secret if you stop training and your muscles shrink. Those extra command centres do not disappear. Your muscles may deflate, but the nuclie stays there. The moment you start lifting again, you don't have to bu