“Men ran after and ate horses for four hundred thousand years. The outcome is more than a love of horse flesh; it is a runner's body.” MenYearsBodyFourThousandHundredHorseFleshRanOutcomesEnduranceThousand YearsRunners Author:Paul Shepard
“The human cardiovascular system evolved as part of the physiology of [prehistoric] hunters, who ran for their lives.” HumansRanEnduranceHuntersPhysiologyPrehistoricCardiovascular Author:Paul Shepard
