I'm asking this for my stepdad. He had a heart attack 6 years ago. He loves physical activity but he gets winded so quick. I've researched this a little and seem to get a different answer every where I look. He's 53, keeps a super clean diet, but he's stubborn and pushes his limits to much, and my mother's afraid she's going to find him laying in the yard someday. So would TRT be safe and helpful for someone thats already had a heartattack?