How to stay happy when the sky is falling in

Brexit, Zika, gun violence, the England football team: there’s been no shortage of bad news lately. Here’s how to look on the bright sideSeen from a certain perspective, the last few months on planet Earth have been pretty unreservedly amazing. Nobody died from smallpox. Almost nobody contracted polio. Hospital operating theatres weren’t generally filled with the screams of patients undergoing surgery without anaesthetic, and no war claimed anything like the single-day death to