It's been said that one number may determine how healthy we are and how long we live, but it's not our weight or cholesterol count. Recent research suggests that our address is a better predictor of our health. In other words, place matters.Dr. Richard Jackson, pediatrician and chairman of environmental health sciences at the Fielding School of Public Health at the University of California, will be in Roseburg on June 20 to talk about how the "built environment" - the way our cities, streets, and neighborhoods are designed - affects our health. As a pediatrician, Dr. Jackson became increasingly concerned …