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Addiction to tobacco is caused by...

Addiction to tobacco is caused by

A

Cocaine

B

Nicotine

C

Caffeine

D

Histamine

Text Solution

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The correct Answer is:
**Step-by-Step Text Solution:** 1. **Identify the Question**: The question asks about the cause of addiction to tobacco. 2. **Understand Tobacco Composition**: Tobacco is derived from the dried and cured leaves of two species of the tobacco plant, namely Nicotinia rustica and Nicotinia tobaccum. 3. **Identify the Active Component**: The primary addictive component in tobacco is nicotine, which is a chemical compound found in the tobacco leaves. 4. **Explain the Mechanism of Addiction**: Nicotine is known to be an addictive substance because it stimulates the release of dopamine, a neurotransmitter associated with pleasure and reward. It also increases the secretion of adrenaline, which can enhance feelings of euphoria. 5. **Discuss Forms of Tobacco Use**: Tobacco can be consumed in various forms, including cigars, cigarettes, kutka, and hookah, all of which can lead to addiction due to the presence of nicotine. 6. **Conclude with the Answer**: Therefore, the addiction to tobacco is primarily caused by nicotine. **Final Answer**: Addiction to tobacco is caused by nicotine. ---
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