The sight of Conor McGregor getting tired after 30 minutes of boxing made me think about how long ancient battles must of raged on and what it must have felt like to be one of those warriors and the endurance ones body must have built up to fight for such extended periods of time. But how much time?

I know the state of modern nutrition and technology allows for soldiers today to be overall healthier and stronger, but how would they fare in an ancient hand-to-hand, swords and sharp sticks, setting?