Why is nicotine addictive?

Animals, including human animals, often find themselves in a state of desire. Desire, the felt motivation to pursue a goal, is how nature gets us to go after the things we need: food, sex, shelter, social status, cigarettes. Wait a minute … cigarettes?

Like many other chemical candidates for the wayward human appetite, tobacco attracts. We desire it, despite its bad press. And as a result, it is one of the worst public health disasters the world has ever encountered.

Tobacco contains nicotine, which is “physically addictive” – meaning we experience a degree of relief and sometimes pleasure when we take it, and when we stop we experience physical discomfort. The same is true of heroin, of course, but that infamous drug is less deadly than nicotine.

The pleasure provided by nicotine is complicated. Nicotine molecules find their way to receptors (little harbours) on several types of brain...

Rate this article: 

This marijuana news is brought to you by 420 Intel. For the latest breaking cannabis industry news, subscribe to the 420 Intel newsletter. If you'd like to promote your product or service in this area after every article, contact us.


URL: 
http://www.theguardian.com/commentisfree/2015/jun/24/why-is-nicotine-addictive-google