Recent studies are clear: Sitting for long hours every day isn’t just bad for you, it could be deadly. After reading yet another news story on the dangers of being sedentary, I decided to take notice! For every half-hour that I work, I try to get up and walk around for three minutes. (If you’re in an office building, try going up and down the stairwell or even stepping outside, if possible.) During conference calls, I stand unless I need to sit in order to take notes. And since I work from home quite a bit, I’m even considering investing in a treadmill desk.