I definitely do, and so does my wife. I'm only 42 and physically quite fit. I've always done lots of sports, and as a teen was running track at swiss championship level.

Nevertheless, I have frequent bouts of atrial extrasystoles, possibly as a side effect of intense cardio workouts as a teen. I see the cardiologist every 3-4 years to be sure and it's mostly considered a benign condition, but should be monitored. I have no limitation on how I do my exercise, and my favorite activity is climbing alpine cols in my area, which means full gas over extensive periods.

I once heard a statistic (don't know if it's true, but sounds plausible) that if you make a pie chart out of all people who die from heart failure during sports, 60% are cyclists, 20 % are runners and 20% are all other sports combined.