Do you feel like all your friends are 'getting old and boring', but you are getting younger by the day? Can you be heard saying the phrase '40 is the new 20'? Is your wardrobe on-trend, but for the second time round? It's official, you're in denial. You are middle-aged! "You Know You're Middle-Aged When..." is a hilarious collection of stories, anecdotes and quotes about other people's mid-life crises, along with tips on how to spot the telltale signs that youth is no longer on your side.