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Cigarettes And Their Destruction Of The Brain
Essay specific features
Written by:
Brian M
Date added:
March 8, 2013
Level:
University
Grade:
A
No of pages / words:
3 / 639
Was viewed:
6939 times
Rating of current essay:
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...
displayed 300 characters
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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...
displayed 300 characters
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