Liver Qi functions to facilitate a free and smooth flow of body energy to normalise the function of our body organs. In the case of high blood pressure (hypertension), the flow of the liver Qi is reversed upward and stuck in the upper part of the body (head & chest). As a result, liver heat is created constantly. Heat has the nature of "Yang" energy, in the terms of TCM and consequently, the rise of Liver Qi (heat) is termed "LIver Yang ascending". Because the rise of blood pressure coincides with the Liver Yang ascending, Liver Yang ascending is regarded as one of the direct causes of high blood pressure and is treated accordingly. Within Qigong and more specifically the Marriage of Heaven & Earth set, healing is achieved by reversing the Liver Yang ascending direction and bringing it back into balance through regular practice of this 3000 year old exercise.