A single day of overindulgence: Hours off your life?

The risks of bad behaviors are well known but not necessarily well understood. Most people are aware that binging on red meat, cigarettes and whiskey on a regular basis isn't good for us -- but how to make sense of the severity of the risk?  When a study reports that adults who ate an extra portion of red meat had a 13% greater chance of dying over the course of a study that spanned more than 20 years, what does that really mean? And what is a sensible person to do about it?

By Eryn Brown

December 18, 2012