defy anyone to argue that it is natural selection’s way of increasing my chances of surviving and reproducing. So too with lots of other anxieties related to human social interaction: a sense of dread before going to a cocktail party that, in fact, is very unlikely to lead to anything that is worth dreading; worrying about how your child is doing at her first slumber party, something you’re powerless to influence; or worrying about your PowerPoint presentation after you’ve
