This is a difficult one for me. But - i just did 35 minutes of exercise (swimming) - i quit as soon as i "felt" it, even tho 35 is a very odd number!!! I told myself, i can go fo a walk later if a want too. Come to think of it, i have another swimsuit - i could go for another swim! Immediate payoffs were - i wasnt wobbly and completely out of breath walking up the ramp to return home and 2. Tmi - i didnt have to rush to the bathroom like after ive been in the pool for an hour or more! My t says i never learned to regulate myself. Old dog, meet new tricks!