When we breathe, breath is enlivening the body. Breathing also releases old air (carbon dioxide among other components). Breathing is a natural, non-thought-out method by which the body takes care of itself.
Care and caring are natural. Society, cultural expectations, indoctrination and hardship -created most often by society or aggression in cultures and against other cultures- could make it seem that caring is not natural, not universal. But, that is not the case.