Pop psychology tells us we can't go wrong with positive thinking. But new studies show that taking account of our obstacles is essential to success.
Lie back and picture life after your ambitions are fulfilled, the motivational gurus used to say, and you'll bring that end result closer to reality. Make an effort to visualize every detail – the finished screenplay sitting pretty on your desk, the gushing reviews in the paper, the sports car parked outside.
The gurus claimed these images would galvanize your determination. They said you could use the power of positive thinking to will success to happen. But then some important research came along that muddied the rosy picture.