question: I had a heart attack due to a 100% over six hours in December; before that I was athletic and in great shape. However, after the heart attack my EF went down to 47... that said my doctor put me on a beta blocker and ace inhibitor. (also blood-thinners and a statin) I exercise heavy 4-5 days a week, and am active for 7 days a week; I eat well, fish at least 5 times a week, all else is vegetables and sometimes chicken; and drink moderately. Today I had another Echocardiogram and suck a peek at the screen before I left. It looked like my LVEF was at 31%. How is it possible that this went down? Am I doing something wrong? What else should I do? Is it safe to fly for business?