A reading guide by Frances Garrett for an article by Kenneth Zysk, "Vital Breath (prāṇa) in Ancient Indian Medicine and Religion," in The Comparison Between Concepts of Life-Breath in East and West (Proceedings of the 15th International Symposium on the Comparative History of Medicine - East and West, August 26-September 3, 1990), edited by Yosio Kawakita, Shizu Sakai, and Yasuo Otsuka. Ishiyaku EuroAmerica, Inc, 1995, Pages 33-66. This episode of Footnotes was a lecture produced by Frances Garrett for a 2019 University of Toronto undergraduate course called Biohacking Breath.