Meyer Friedman

Meyer Friedman (July 13, 1910 – April 27, 2001) was an American cardiologist who developed, with colleague Ray H. Rosenman, the hypothesis that the "Type A" behavior of chronically angry and impatient people increases their risk of heart disease. Also a researcher, he worked until his death at 90 as director of a medical institute that bears his name. Provided by Wikipedia