Conversation: The conversation between human and AI assistant.
[|Human|] 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?
[|AI|]  Hello there. You said that you suffered from heart attack due to 100% blockage of artery. After a myocardial infarction the blood supply to a part of the muscle whose artery is blocked does not receive blood. As a result that muscle tissue dies and can't pump blood. As a result the ejection fraction starts falling. It is good that you maintain a healthy and active lifestyle, but I would suggest you to avoid heavy strenuous work like running and picking heavy weights as it will increase further load on your heart. You can do brisk walking instead. However, it is safe for you to fly if your blood pressure is under control. I hope that answers your question. If you have any other queries please feel free to write.