Simplistic Complexity

The body is not only very complex, but also incredibly simple. It consists of trillions of cells; miles of veins and arteries; and hundreds of muscles, bones, tendons, and ligaments. Through coordinated interactions, it functions, fights disease, and sustains our very being. Although complicated in its working, the body simply responds and adapts to what we give it. The stress, or lack thereof, we place on our body directly changes its structure. On one hand: if we lift weights, we grow muscle and become stronger; if we run, we lose fat. On the other hand: if we sit on the couch, we weaken; if we eat excess amounts of food, we fatten. Simple. Take care of the straight-forward variables, then the more nuanced inter-workings of the body will respond.