Prolonged standing at work linked to higher blood pressure  News-Medical.NetSitting too much is a danger not even exercise can undo. Here are 5 tips to move more  FortuneStudy finds too much sitting hurts the heart  Harvard GazetteSitting for More Than 10 Hours Daily Ups Heart Disease Risk  MedscapeSitting is The New Smoking: How to Move More and Stay Healthy  The Dallas Express