Nicotine Effects On The Human Body

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Nicotine Addiction

Nicotine is the chemical in cigarettes that makes them addictive. About 85% of smokers are addicted to nicotine. Higher levels of nicotine in a cigarette can make it harder to quit smoking. The amount of nicotine in cigarettes has steadily increased in the past decade. Higher nicotine levels have been found in all cigarette categories, including "light" brands.

Some researchers feel nicotine is as addictive as heroin. In fact, nicotine has actions similar to heroin and cocaine,...

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