The Joy of Running Author:Thaddeus Kostrubaola, M.D. The Joy of Running is a bright new light at the end of a long tunnel of ignorance about the effects of slow distance-running on the mind and body of man. Books like this are long overdue. Jack H. Scaff, Jr. M.D. Director of Cardiac Rehabiltation Program, Honolulu Medical Program. President Honolulu Marathon Association.