Optimism offers measurable benefits to preventing cardiovascular disease

"In this comprehensive review of over 200 studies of various forms of well-being and and cardiovascular health outcomes, Harvard researchers Julia Boehm and Laura Kubzansky discovered that cerain psychological traits--optimism, positive emotions and a sense of meaning--offer measurable protection against heart attacks and strokes."

Michelle Oznowics, “Don't worry, be healthy,” The Intelligent Optimist, September/October 2012, 5. (No link available) [verified 4/18/14]