The theory and practice of traditional Tibetan medicine (TTM) is based on an understanding of a tri-level psycho-physical system; this bi-directional connection between the psycho-somatic realms is mediated by a distinct, yet inseparable energetic system - the subtle body. TTM practitioners approach both diagnosis and treatment from an understanding of this subtle energetic system. In the Tibetan yogic tradition, control of this system via advanced yogic and meditative technologies is the path to realize extraordinary levels of health, happiness, and longevity. As a result, understanding this intricately linked philosophical, medical, and yogic system is critical for engaging in dialogue about longevity-enhancement within this tradition.