As March approaches and longer days invite more outdoor activity, I'm returning to a more consistent power-walking and jogging routine. And according to a new study, these walks may help me not only live longer but also spend more years free of Type 2 diabetes than my non-exercising counterparts. The Framingham Heart Study -- following 5,200 subjects over 46 years -- found that by the age of 50, moderately active people could have a life expectancy free of diabetes 2-3 years longer than inactive folks. If you're highly active, this figure increases to four years. The study's team sends this clarion call to all sedentary people: If you can be stimulated to be at least moderately active, you can extend your life and increase your lifetime spent without diabetes. Spring is practically here, so get out there and get walking!