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Nicotine Addiction
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Nicotine is a drug and is addictive. This means that you become dependent on it, it does not mean that you have to increase the dosage or decrease the time in between. You will get withdrawal symptoms if you stop, hense all the replacement treatments available.
"Nicotine: A Powerful Addiction
If you have tried to quit smoking, you know how hard it can be. It is hard because nicotine is a very addictive drug. For some people, it can be as addictive as heroin or cocaine."
yes rojash, MENTALLY addictive. The body does not alter to "need" nicotine, there are nural effects in the brain that "learn" the experience so it becomes desirable, that's why it soon becomes very difficult to stop. We all agree it's a powerful addiction but it's mostly in the Mind.
Maxximus, see here: http://health.howstuffworks.com/nicotine2.htm
most of it's gone after 6 hours!
I understand that herion is so addictive because it is so similar to endorphins that it locks into the receptors in the brain that the endorphins use ( endorphins natural pain killers released by the body after strenuous exercise)