How do Muscles Grow?
Take your biceps on the front your arms as an example. Like all other muscles in your body, the biceps are comprised of tightly woven bundles of muscle fibers, which are in turn made of muscle cells. When you produce a force, such as lifting a couch, most of those muscle fibers in your biceps are exposed to tension (especially if your couch has a fold-out bed hidden inside). The tension from the weight of that couch stretches the fibers and can cause tiny tears in them -- and when the cells in your muscle fibers sense this trauma, they rally the muscle-building troops from your body to repair the tears. These muscle-building troops include hormones, growth factors and white blood cells, which not only repair the muscle fibers in your biceps, but also increase the size of the fibers and the strength of nerves that activate them, so that next time you lift a couch, you strain a bit less. But there are better ways to make your muscles grow than by lifting the occasional couch. Ultimately, the tr ick to growing muscle is to stress it, allow it to recover while eating enough healthy food to feed the new muscle, and then repeat! With this strategy, you can safely build one to two pounds of muscle each week -- and since muscle takes up much less room than fat, those pounds will look tight and lean. Once you’ve built your new muscle, let me know. I have some heavy couches that need moving.