Yoga physiology refers to the way in which the body is described and understood in yogic philosophy and teachings. It may also be used to describe the application of modern science and anatomy to the understanding of the effects on the body of yoga practice. Modern yoga teacher training will often integrate both of these approaches.
Yoga physiology traditionally considers the human body as being composed of five sheaths, or koshas. It is also thought to contain energy channels which can be activated, stimulated and influenced by yoga practice. The energy map of the human body also includes the chakras, which are energy vortexes, or centers, located in the subtle body rather than the physical body.