Reviews Rainy Brain, Sunny Brain: How to Retrain Your Brain to Overcome Pessimism and Achieve a More Positive Outlook by Elaine Fox Share this:EmailFacebookTwitterPinterestPocketRedditPrint By Science News August 10, 2012 at 11:56 am An overview of recent research suggests ways to take advantage of the brain’s malleability to change patterns of thinking. Basic Books, 2012, 256 p., $26.99