Margaret Humphreys received her Ph.D. degree from Harvard University in the history of science, followed by the M.D. degree in 1987 from Harvard Medical School. After residency in internal medicine at Brigham and Women's Hospital in Boston, she practiced medicine for another three years in Quincy and Braintree, MA. In 1993 she moved to Duke University in Durham, NC, where she practices medicine and teaches in the Department of History. She also edits the Journal of the History of Medicine and is the author of the book Yellow Fever and the South.