Nothing special, ran 3 miles a day, 300+ days a year at 7 min pace for 30 yrs. Had to stop after being placed on alpha blocker for prostate, replaced with 12 miles a day on bike. At 66 was pissed about my exercise tolerance climbing mointains and had a stress echo. Had a rate pressure product over 40,000( heart rate 200,systolic blood pressure 210) with an ejection fraction of 65%. Had a Rezum procedure and got off the alpha blocker, did a half marathon in January. My 3 sons do ironmans, at an international(shorter) last year in Ft Lauderdale there were a couple of men + 80 still completing the event. Keep at it, keep your weight normal, eat right and keep living. Good genetics helps alot. Climbing mountains on an alpha blocker is hell, was hunting in the Florida Mountains in NM, took me 30 min longer to get to the top compared with one of my sons, hated being on the drug. There are old marathoners that stop the drug and risk kidney damage rather than stop running, now with newer procedures with very low complication rates you don’t have to give up maintaining your condition.
The guy I want to emulate is mtwarden, am beyond impressed.Light and fast.