Tommy Bell knew he hadn't always had the best diet, but when he started working at a Florida hospital over 10 years ago, he learned a lot about how nutrition contributes to health and started eating better.  At 62 years old, he felt like he was in good shape: He didn't smoke or drink, he ate well and walked over 10,000 steps a day in his job transporting patients around AdventHealth DeLand Hospital.  When Bell started to feel some mild pain in his chest while driving home from work the day