Add 'Why do we Remember Pain?'

Why-do-we-Remember-Pain%3F.md

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+<br>In 1954, two researchers at Canada's McGill University by chance discovered how humans be taught to repeat habits that's useful to our survival. An electrode implanted in the [Brain Health Pills](http://www.aiki-evolution.jp/yy-board/yybbs.cgi?list=thread) of a rat had slipped from its meant place and had come to relaxation on the medial forebrain bundle, a group of nerve cells that leads from deep within the [Brain Health Supplement](http://www.p2sky.com/home.php?mod=space&uid=6364584&do=profile) to the prefrontal cortex. Upon delivering a sequence of electrical shocks to the electrode, the rat displayed a keen curiosity in the realm of its field it had been exploring when it acquired the primary jolt. Upon additional investigation, Olds and Milner realized that what they'd found was the mind's reward heart, a system of regions associated with delivering a sense of pleasure in return for certain behaviors like consuming and mating. This discovery was revolutionary