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Power really does corrupt as scientists claim it's as addictive as cocaine More than a hundred years after noted historian Baron John Acton coined the phrase 'power tends to corrupt, and absolute power corrupts absolutely' scientists claim the saying is biologically true. The feeling of power has been found to have a similar effect on the brain to cocaine by increasing the levels of testosterone and its by-product 3-androstanediol in both men and women. This in turn leads to raised levels of dopamine, the brain’s reward system called the nucleus accumbens, which can be very addictive. ...