The War in Your Brain - Understanding Drug Tolerance and Addiction
One neglected battlefield of the War on Drugs is the one that occurs inside an addict's head. This is because the physiological mechanisms responsible for our survival in the event of chemical infiltration are a seemingly double edged sword that may be more dangerous than beneficial in the long run. This survival mechanism is called drug tolerance - an addict's most wearisome enemy - but not for the reasons you might think.