Center, Dr. John Principe takes a fitness class with his patients at his WellBeingMD, LTD Center for Life at 11950 S. Harlem Ave., in Palos Heights., on Tuesday, September 18, 2012. In the foreground is Agne Doniela, (cq) ,certified personal trainer. (Nuccio DiNuzzo/Chicago Tribune) B582371768Z.1 ….OUTSIDE TRIBUNE CO.- NO MAGS, NO SALES, NO INTERNET, NO TV, CHICAGO OUT, NO DIGITAL MANIPULATION…