Pain might actually have a pro-social function:
“Our findings show that pain is a particularly powerful ingredient in producing bonding and cooperation between those who share painful experiences,” says psychological scientist and lead researcher Brock Bastian of the University of New South Wales in Australia. “The findings shed light on why camaraderie may develop between soldiers or others who share difficult and painful experiences.”
Students of rhetoric might have already suspected that, however. Pathos, one of the traditional appeals set down by Aristotle, is usually translated as emotional appeal. But ancient Greek was a preliterate language that conserved words by attaching multiple meanings onto them. This helps to explain why arete is such an expansive term. Accordingly, pathos meant both to suffer and to experience. In a small way, this study supports this ancient line of thought.