That's BS. Ignoring environmental factors (getting hit by a car) there are a million other factors. How you eat, how you exercise, genetics, etc.

Even if it's true, those who exercise have lower resting heart rates so if spending time in the red means my resting heart rate is in the 40's (it is), so be it. I'll spend 20-30 mins a week in the red, 6-10 hours moderate, and the rest of the time I'm humming along effortlessly.