Hot and Cold Diseases
In Tibetan Medicine, disorders of the humoral energies can be divided into two general categories of hot and cold disorders. In this case, we look at the four humors connected with the Greek medical tradition - rLung, Tripa, Pekén, and Trak (blood). Tripa and Trak are defined as hot-natured energies, while Pekén and rLung are defined as cold-natured energies.
While rLung is described as being cold in nature, based on its inherently cool quality, in actuality this humor is ambi-valent, with the capacity to increase both hot and cold conditions. We can imagine this as wind's ability to both speed freezing (i.e. wind-chill) and stoke a fire. This power, as well as rLung's motility, places it at the center of all systemic imbalance. rLung, for instance, is responsible for metastasis of all hot and cold-natured tumors, making treatment of wind an important factor in the management of any kind of cancer.