We consume about 25 percent of the world's oil every year, but we only have reserves, including that which has not been pumped, of about 3 percent of the oil reserves in the world. ↗
You get very tired, and there was a certain amount of pain and you slow up. Your legs are so tired that you are in fact slowing. If you don't keep running, keep your blood circulating, the muscles stop pumping the blood back and you get dizzy. ↗