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Nicotine actually exerts its effect by mimicking a second neurotransmitter called acetylcholine.
ECONOMIST: Great drug, shame about the delivery system | The
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Interest has thus focused on drugs that inhibit the breakdown of acetylcholine, and also on nicotine, which works by mimicking its effect.
ECONOMIST: Cognitive enhancement
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So why would any official directive aimed at improving health advocate banning, in effect, effective and relatively harmless nicotine-delivery methods that help smokers quit, while allowing the most harmful consumer product cigarettes to keep on killing?
FORBES: The EU's New Tobacco Directive: Protecting Cigarette Markets, Killing Smokers
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And the effect on the brain is different: with nicotine, the more you smoke, the more you want.
ECONOMIST: Chilies
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E-cigarettes work by vaporising nicotine-laced liquid that can be inhaled, replicating the effect of smoking without all of the carcinogens.
CNN: Sales of e-cigarettes continue to soar