By Tim Harms, American Heart Association— INDIANAPOLIS –Walking in a winter wonderland may sound serene and peaceful, however, shoveling your sidewalks to take that walk could quickly change delightful to deadly. According to the American Heart Association, the world’s leading nonprofit organization focused on heart and brain health for all, research shows that the exertion of shoveling snow may lead to an increased risk of a heart attack or sudden cardiac arrest. In rural communities where EMS responses can be…