Money As Drug

Mark Buchanan brings the science:

Lea and Webley propose that money, like nicotine or cocaine, can activate the brain's pleasure centres, the neurological pathways that make biologically beneficial activities such as sex feel so rewarding. Of course, money does not physically enter the brain but it might work in a similar way to pornographic text, argue Lea and Webley, which can cause arousal not by giving any biochemical or physiological stimuli, but by acting through the mind and emotions.