Wesley Anderson.

“Self-help’s usual response to worry is to replace a glum or stress-inducing view of the future with an upbeat one: if you’re convinced the worst will happen, just convince yourself the best will happen instead! But that rarely works. The findings of Kahneman et al suggest a different approach: rather than trying to change that feeling in your gut from negative to positive, learn to be sceptical of your gut feeling, whether it’s negative or positive - because there’s good reason to believe your focus is completely wrong.”