‘THE ONLY THING we have to fear is fear itself.’ That phrase, first uttered by Franklin D. Roosevelt in 1932 during his inaugural speech as president, is probably the one I have thought about most in my life. It used to taunt me, during my first bout of panic disorder. Fear is enough, I used to think. The words have also been in my mind while writing this book. Like ‘time heals’ and all the best clichés, it has become a cliché for good reason – it has the power of truth.