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== == I'm not sure I know what you mean by "necoses", since that is not an actual word, but I know that medical terms can be difficult to figure out, especially the spelling. It would be helpful if you would re-write the question and include what you mean by this word. I will assume, for the time being, that you are referring to "necrosis", which means that tissue in the body dies, (Necro=death; osis=condition of.) If you are referring to lung tissue or other cells in the body, smoking cigarettes doesn't actually cause tissue *death* of the little air sacs...that would mean there is rotting tissue inside the body and this would lead to severe infection, not to mention many other problems, but it *does* mean that the the air sacs and the tiny finger-like projections in the lungs (called cilia) become unable to function. (The cilia are responsible for "sweeping" unwanted material from the lungs.) It is actually the *tar* in the cigarette smoke that does most of the tissue damage, not nicotine, though nicotine does do other types of damage. The tar coats the tiny air sacs (called "alveoli") in the lungs and makes the alveoli unable to exchange the "good" air for the "bad" air, and it also makes them very stiff. It does this to the cilia as well and they become unable to rid the lungs of all the harmful build-up of the cigarette by-products. That's why so many people who have smoked for a long time usually get "emphysema", or as it's also called, chronic obstructive pulmonary disease...COPD for short. As this disease advances, a person is able to breathe in with some difficulty (because of the stiff or "dead" air sacs), but cannot push all the "bad" or "used" air out. That means they retain the carbon dioxide and other by-products of respiration that then build up in the blood stream.

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โˆ™ 2008-10-22 18:27:53
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Q: Why does nicotine cause necroses?
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Related questions

How can nicotine cause cancer?

Nicotine is not carcinogenic.


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Necroses is the plural of necrosis


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No. Would nicotine gum be available if it did?


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Nicotine has not yet been proven to be carcinogenic.


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Nicotine does not cause cancer. Nicotine causes addiction, which makes it increasingly difficult for a smoker to quit. It is other chemicals within tobacco that damage cells and may cause cancer.


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The nicotine in it.


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It is a drug so nicotine can cause lung diese and you can die.


Will the nicotine in the patch cause you to test dirty for tobacco with a urine test?

No, nicotine in the patch will cause you to test positive for nicotene... that's about it


How does nicotine affect your body?

Nicotine can affect brain cells and may damage the brain. Nicotine also cause problems with the lungs, and may cause cancer.Nicotine is a central nervous system stimulant that acts by increasing the production of the neurotransmitter serotonin.Nicotine increases blood pressure


What are some sources of nicotine?

Tobacco products including cigarettes, cigars, chew, snuff. These are all known to cause cancer. Nicotine patches, nicotine gum, electronic cigarettes which deliver nicotine through steam. These are safer and don't cause cancer.


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By definition, if it requires nicotine it is not natural.


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Why does nicotine cause heart attack?

nicotine causes heart attacks because of the drug usage that is in it


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addicts you to it.


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What is the leading cause of cancer is deaths?

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Yes nicotine does affect you heart rate. The cigarette smoke (contains nicotine) cause your heart rate to directly increase.


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Nicotine can have various bad effects on the heart. For example, it can cause the heart rate to be increased.