“Dr Brendan Rooney of UCD School of Psychology says there are several reasons for the deep-rooted relish we have for being terrified. ”There is a claim or theory that there's an evolutionary advantage to experiencing fear," he said. "What we have learned is that by experiencing things like fear, we are learning in a protected environment how to deal with real situations. Even though we never may have a zombie crashing through the house, we are learning what to do when we are met with fear," he explained.”