Todd Gleeson grew up among the orange groves of southern California when they still grew them there. He earned a doctorate from the University of California, Irvine, in developmental and cell biology in 1979, and has been a member of the Boulder faculty since 1981. He is a professor in the Department of Integrative Physiology, where he has trained numerous undergraduates and 20 graduate and postdoctoral students, with whom he has published over 100 articles and abstracts on his studies of the metabolic consequences of muscle fatigue in animals. He earned Boulder campus SOAR teaching honors in 1985, and is an elected fellow of the AAAS. He served as Associate Vice Chancellor for Faculty Affairs on the Boulder campus from 1997-2001, and served as Dean of the Arts and Sciences from 2001-2012. He owns two pairs of cowboy boots.