Exercise squeezes growth hormone out of fat, to repair lazy muscles. More muscle mass burns fat, the less fat the more circulation improves.
2:25 ,,They turned into almost different beings'' 1 min of exercise buys you 5 mins of life. That's a hell of ROI.
Exercise and natural food with no human & medical intervention is the most potent medical intervention ever known. That gives the body the best chance to remove dead/cancerous cells and toxins and grow healthy new cells. Of course, the body cannot grow brain cells. Unnatural food with human & medical intervention includes - transfat where the food molecules trans (move across) from one side to another of the chain - Chemical/additives that make the food look and taste nice. - preservatives to make the food toxic so that the bacteria/mold/yeast cannot survive