The doctor Raplh Paffenbarger died at the age of 84. Here is all you want to know, and more!
Biography - A Short Wiki
He pioneered research into exercise and linked it to health and longevity.
He was married twice and had four children.
Ralph S. Paffenbarger Jr., an epidemiologist who led an early and long-running health study of Harvard graduates that has been influential in promoting vigorous exercise as a primary tool in preventing heart disease, died Monday at his home in Santa Fe, N.M. He was 84. The cause was heart failure, his family said.