Lisa Holland | Oct 28, 1990 | 1 min read
In the 1990s, anyone tuning in to a television news program or opening a popular magazine in the United States can learn about the dangers of such heart risk factors as hypertension, high cholesterol, and cigarette smoking. But until the early 1950s, these factors were not identified as precursors of heart disease. "The Framingham study put into numbers what was only assumed or thought at the time," says Marvin Moser, a clinical professor of medicine at Yale University School of Medicine. "And