On the New York Times's health blog, Gretchen Reynolds discusses the dramatic increase in heart disease-related death for folks who sit for long periods (whether in front of a computer or television, or in the car). Even more alarming for those of us who try to get away from our screens for some exercise are recent studies that show that adding exercise to your daily routine fails to lessen the negative health impacts of a sedentary lifestyle. Rather, we desk jockeys should find ways to increase our physical activity while we work. Frequent walking breaks, pacing while you're talking on the phone, or converting to a standing desk, could truly be a lifesaver.follow link