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The urge to drink or take drugs is, neurochemically speaking, linked to endorphins (natural morphine-like molecules) or dopamine, a neurotransmitter that is involved in bits of the brain that control reward behaviour.
ECONOMIST: New drugs for old habits
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The middle ground might consist of a complete set of protections and assurances that Microsoft would not intimidate or attempt to control the behaviour of Internet Service Providers and computer manufacturers, he said.
BBC: News | The Company File | Microsoft ruling imminent
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There are a number of different electronic training aids, including an anti-bark collar, remote control collars used to control any unwanted behaviour, electric shock training leads and electric boundary or "freedom" fences.
BBC: Joan Andrews and Bonny