Yep, slow down enough so that you don't sweat and can breathe 100% through your nose. At first you'll be very slow but if you keep on going weeks after week you

Yep, slow down enough so that you don't sweat and can breathe 100% through your nose. At first you'll be very slow but if you keep on going weeks after week you'll slowly get faster. A big part of it is mental too, if you're in relatively good shape even as a complete beginner your body shouldn't complain too much for at least an hour, if you're experienced you should be able to sustain that for hours That's what I do as an amateur but then again I have no running watch, I run in $15 shoes, I don't care about PR, distance, &c. all I care about is slowly and safely building cardiovascular endurance