Chinese Medicine has a number of models of human functioning and physiology. One major system is known as the six conformations, also known as the six stages, or the six divisions. I find this system to be both fascinating and extraordinarily useful in understanding the human being. This model originates in the six environmental factors: cold, heat, dry, damp, wind, and fire. Also known as climactic influences, these six were seen as encompassing all influences that came from the environment. For instance, in the winter the weather is cold. During the rainy season, the weather is damp. And so on. Each climactic factor influences the body in a particular way, giving rise to each of the six conformations.