John D. Gartner Are all American entrepreneurs hypomanic? John Gartner defines the hypomanic American and describes traits associated with hypomania.

About the author:
John D. Gartner graduated from Princeton University and received his Ph.D. in clinical psychology from the University of Massachusetts, Amherst. He is widely published in medical journals and books. He is a clinical assistant professor of psychiatry at Johns Hopkins University Medical School and a psychotherapist in private practice in Baltimore.