scroll to top
Stuck on your essay?
Get ideas from this essay and see how your work stacks up
Word Count: 645
Cigarettes and Their Destruction of the Brain Smokers generally feel more comfortable after that especially important first cigarette of the day Within just a few seconds of lighting up smoking activates mind-altering changes Smokers are well aware of the long-term risks of their habit such as lung cancer heart disease emphysema and other deadly illnesses 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 acetylcholinean important neurotransmitter and mimicking epinephrine and norepinephrine giving the smoker a rush or stimulation Within 30 minutes smokers feel their energy begin to decline as the ingested nicotine is reduced This process continues as the smokers 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 The brain is reshaped the smoker feels normal with nicotine in his system and abnormal without it A series of tests were conducted on nonsmokers active smokers and deprived smokers The active smokers were given a cigarette before each test while the deprived smokers were not allowed cigarettes before tests The tests started simply and then moved towards more complex problems In the first test subjects sat in front of a computer screen and pressed the space bar when a target letter among 96 was recognized smokers deprived smokers and nonsmokers performed equally well The next test involved scanning sequences of 20 identical letters and as one of the letters was transformed into a different one responding with the space bar Nonsmokers responded fastest and active
@Kibin is a lifesaver for my essay right now!!
- Sandra Slivka, student @ UC Berkeley
Wow, this is the best essay help I've ever received!
- Camvu Pham, student @ U of M
If I'd known about @Kibin in college, I would have gotten much more sleep
- Jen Soust, alumni @ UCLA