repeatedly methodically deeply way before your body is taxed from the very onset of exercise
this prob saturates your muscles with oxygen way before it needs it
if you start breathing heavy when youre working hard youre already in oxygen debt and catching up
Well, cool, I guess, but an 8 minute mile isn't very impressive. I ran a marathon at 8 minute per mile pace, so....twenty-six 8 minute miles in a row without being out of breath.