I have read that running (especially distance running) may be "natural" to humans because of the tie to our primal hunting technique of hunting faster animals over long distances at an even pace until they tired enough to kill them. Also, I have heard of sprinting as possibly inciting the fight or flight response. So, is the tie to a genetic predisposition for certain techniques "in the wild" the reason that some of us love running so much? Is it satisfying some instinctual desire?
What are your thoughts?