Is nostalgia helpful or a hindrance?

Welcome to Answerable Questions with Questionable Answers! When we reminisce about days gone by are we remembering them correctly or are we seeing them through rose tinted spectacles? When people long for the simpler times of the past is that a fair assessment or is it just a longing for one's youth? This week the AQQA team delve into nostalgia to see whether it's more of a help or a hindrance.