
Study: Your Brain Thinks Money Is A Drug : NPR: "If you've ever thought of money as a drug, you may be more right than you know. New research shows that counting money — just handling the bills — can make things less painful.
'It is surprising,' says Kathleen Vohs, a professor of marketing at the University of Minnesota's Carlson School of Management who participated in the research. 'It still surprises me.'"