Ancient Chinese Medicine Five Earth Elements Theory ebook in simple terms explains a more than two thousand-year-old theory on what causes disease in our body's systems and organs. The ebook begins with an explanation that our body's energy is constantly flowing and this change is known as Yin and Yang. For example, the morning fog is dissipated by the heat of the sun. A sprained ankle is hot and inflamed (Yang) but as the swelling goes down, the condition moves to Yin. Examples of how all energy in the Universe and in our body must be balanced is described in the ebook. Along with a description of each of the five earth elements and their relationship to our major organs, there are also descriptions of how the earth elements and Seasons represent and affect our body's systems and organs.