He's obviously of twink built (yet look better than 95% of Getbig untrained fat asses) but his pain threshold is superhuman. Go test for yourself. Get on a bike and peddle as fast as you can. Do it up hill. When the lactic acid start seeping in, keep going the same pace and do it for another 5-6 hours. Then come back and tell us. And by all means, take some EPO. Let us know how that helped you in this quest.