The energy and enthusiasm in a basketball arena are palpable. Baseball and football fans may be equally enthusiastic, but they’re not screaming in an enclosed space. Basketball arenas are like echo chambers and the noise can be deafening. One researcher says that’s literal. According to audiologist Ray Hull of Wichita State University, a typical college basketball game with a pep band and public address system can generate around 115 decibels. That loudness can damage hearing within about eight minutes. Fans should consider simple foam earplugs as critical accessories for cheering on their team.