What is nicotine - smoked by humans, used in pesticides.
What is nicotine addiction, found in and replacement therapy
What is nicotine; the deadliest and most destructive substance ever introduced to the human body in search of pleasure. Nicotine is a stimulant agent to receptors in the brain and is produce by tobacco plants. It is named after the tobacco plant called nicotiana tabacum.
One important characteristic of nicotine is its ability to easily penetrate the skin. Hence the development of smoking patches to help people stop smoking. It's history stretches back to the 1500s were the first seeds were discovered and exchanged between continents.
Nicotine is transmitted to the brain via the bloodstream. It is very addictive in the brain and is lethal at higher doses which can easily kill a human being. In lower but abused doses it causes dizziness and decreased heart beat amongst other effects. Nicotine overdose may lead to nicotine poisoning. It also affects moods in human beings.
Some scientists have found nicotine to be useful as a medical drug working as relaxant. It has reportedly been able to bring sharpness, calmness and alertness in individual users. However, its major downside is its dependence and withdrawal effects.
It takes 10 seconds for nicotine to reach the brain after a cigarette puff. Nicotine stays in the body for about two hours. However due to smoking repeated doses are introduced into the bloodstream. This makes it possible for nicotine to stay in the body for up to 8 hours after the very last cigarette.
Women who expose themselves to nicotine in the early stages of pregnancy by smoking face a greater risk of birth defects in their new borns. Nicotine exposure is not necessarily through smoking but also through other medical interventions such as nicotine chewing gum and nicotine patches. Chewing tobacco is equally dangerous.
Nicotine has been strongly linked to damage to cadiovascular arteries across the body. This way it has been held responsible for subsequent heart conditions in smokers.
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