He received his Ph.D. in the History of Science at Harvard University in 2005, and has a B.A. from Stanford University in African and Afro-American Studies and Euro-American History. His main area of specialty is the history of U.S. drug policy and drug research, particularly as related to trends of incarceration. Other areas of specialty include the history of theories of race, the intersection of science and law, the history of human subject research, health disparities, and topics related to genetics, race & health. Dr. Glenn is the co-founder and executive director of Sobriety High, Inc., a non-profit community organization providing residential and out-patient services for minority men returning to Galveston from prison who have a history of substance abuse.