I have smoked mj daily since I was 19, I am 74 now. My wife is 76 and she also smoked everyday since she was 20. We are both in perfect health. My blood pressure is 110/70. I walk on a treadmill for 40 min every day to stay in shape. I have had a successful life and have a comfortable retirement. No heart problems for either of us and it has been years since either of us were sick with anything.