Cigarettes And Their Destruction Of The Brain

Essay specific features

 

Issue:

Social Issues

 

Written by:

Brian M

 

Date added:

March 8, 2013

 

Level:

University

 

Grade:

A

 

No of pages / words:

3 / 639

 

Was viewed:

6939 times

 

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Essay content:

However, smokers are attracted by the immediate effects of smoking: "a stimulant that makes them seem to feel more alert, clearheaded and able to focus on work." Smoking however, does not really have these effects; what the smoker perceives is an illusion. Nicotine begins to act on brain cells within ten seconds of inhalation, fitting into "keyholes" on the surface of the brain; the same "keyholes" as acetylcholine(an important neurotransmitter), and mimicking epinephrine and norepinephrine, giving the smoker a rush, or stimulation...
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Within 30 minutes, smokers feel their energy begin to decline, as the ingested nicotine is reduced. This process continues, as the smoker's attention becomes increasingly focused on cigarettes. Nicotine causes smokers' brain cells to grow more nicotinic receptors than normal; therefore, the brain may function normally despite the irregular amount of acetylcholine-like chemical acting upon it...
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