yeah my doctor is a bit of a lean mean machine himself. He knows what he's doing. I've calculated that I still have about 70-80 lbs in extreme reserve, based on my fighting weight ;)
I also don't have the endurance muscle fibres. I'm like a Cheetah. perhaps we had different strategies. I couldn't run down an Impala over a whole day let alone a few days. I think weapons were perhaps the real magic bullet we no doubt learned how to throw or sling a stone, millions of years ago and a well placed rock would stun an animal, just long enough to run over and smack it ! :) would be great to see it all speeded up.. we kind of can through fossils
RE: Surviving the Extremes: The one way human physique outperforms nature... Kinda.