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It becomes difficult for smokers to leave smoking inspite of knowing the ill effects because nicotine is addictive.
Nicotine is a strong stimulant that gives the feeling of enthusiasm after taking it due to the chemical reaction in the body of the person taking it. While smoking a cigarette although the amount of nicotine inhaled is quite small (because most of the substance is destroyed by the heat), its still sufficient to make you addicted for that. The amount of nicotine absorbed by the body from smoking depends on many factors, including the type of tobacco, whether the smoke is inhaled, and whether a filter is used.
Although nicotine does play a role in acute episodes of some diseases (including stroke, impotence, and heart disease) by its stimulation of adrenaline release, which raises blood pressure, heart rate, and free fatty acids, the most serious longer term effects.
Nicotine is an unusual chemical because when absorbed slowly, it can act as a sedative and when absorbed quickly it can act as a stimulant. Pipe and cigar smokers usually experience more of the sedative/relaxation effect while cigarette smokers usually experience more of the stimulant effect.
In many respects, nicotine acts on the nervous system in a similar way to caffeine
Today, smoking - related illnesses among women and teenage girls is a full-blown epidemic. All smokers, irrespective of gender, suffer all the consequences of smoking such as increased cancer risk of the lung, mouth, larynx, pharynx, esophagus, kidney, pancreas, kidney, and bladder and respiratory diseases. However, there are numerous smoking-related health threats, which are unique to women. Certain cosmetic effects of smoking become evident in the short term.
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