The question presents itself: why do we need to breathe? We are well aware that breathing comes easily to each of us, both awake and asleep! Of course, there is a sudden alarm when we can’t breathe, as our life depends on it. Why is that?
Our body is a highly complicated machine that requires a considerable amount of energy to maintain and repair itself. We need energy to conduct daily activities such as walking, talking, thinking, climbing, sitting, and breathing. Where does this energy come from?