New Scientist magazine has published a poorly titled article describing what most of us already knew though we may not have consciously examined it before. It describes how gamers, when playing popular multiplayer action game Unreal Tournament 2004 again first an opposing team of strangers and then against their own friends, display markedly raised testosterone levels after a victory in the first condition but lower levels in the second. Simply put - defeating faceless enemies is more physically exciting than defeating your companions.
