Nicotine is one of the many chemicals found in the smoke from tobacco. It is the major component in tobacco that acts on the brain. It is one among the most famous addictive drugs. It is an organic compound that is found naturally in the tobacco plant. It contains carbon, nitrogen, hydrogen and oxygen. It belongs to a group called alkaloids.

Nicotine is a stimulant as well as a sedative. Exposure to nicotine causes the stimulation of the adrenaline glands and leads to the secretion of adrenaline. This in turn leads to a sudden release of glucose and an increase in the blood pressure, respiration and heart beat. Nicotine suppresses the release of insulin which makes them hyperglycemic. Nicotine also releases dopamine in the brain which control pleasure and motivation. Depending on the amount of nicotine consumed it can act as a sedative also. Nicotine is also known to suppress appetite.

Exposure to nicotine for long periods causes addiction. Repeated exposure to nicotine increases tolerance and hence makes it imperative to smoke more to produce the same effect as before. Cessation of smoking leads to emotional and physical withdrawal symptoms. The symptoms include irritability, dizziness, anxiety, headaches, loss of concentration, disturbed sleep, feeling of anger, depression, tiredness and craving for more nicotine. Nicotine from the smoke is immediately absorbed into the lungs and it then enters the blood vessels lining the lung tissues. From here it enters the main blood stream and travels to the brain within ten seconds and causes stimulating effects.

Nicotine, being highly addictive, is difficult to stop. A number of Stop smoking drugs are today available in the market to get rid of smoking habit.

some of those drugs are effective

Although person should decide that he/she needs to quit smoking. Some people think that it is impossible to quit smoking without those drugs. they don't believe in themselves.

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Nicotine is a stimulant, as well as painkillers and. Exposure to nicotine the adrenaline glands are stimulated and the secretion of adrenaline is. This in turn sudden release of glucose and blood pressure, breathing and heart rate is increasing. Nicotine inhibits the release of insulin, making it hyperglycemia. Nicotine in the brain that control pleasure and motivation to release dopamine. Depending on the amount of nicotine that can be consumed as a sedative as well. As nicotine is known to suppress appetite.

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A trigger nicotine, and similar painkillers have. Expressions adrenaline secretion of adrenaline glands and is encouraged to nicotine. In glucose and blood pressure, breathing and heart rate are rising suddenly turn release. Nicotine prevents the release of insulin, as the hyperglycemia. Nicotine that control pleasure and enthusiasm for the release of dopamine in the brain. The amount of nicotine used as a sedative can depend on as.

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Immediately after nicotine exposure, there a "kick" in the adrenal glands and encourage drug epinephrine off (adrenaline) from the result was partial. The body makes adrenaline rush and a sudden release of glucose with blood pressure, breathing and heart rate increased leadership. Nicotine also the pancreas, which means that smokers are always slightly hyperglycemia suppresses the production of insulin. In addition, nicotine indirectly brain areas that control the release of dopamine in the pleasure and enthusiasm causes. Such as cocaine and heroin - - smokers delight by many experienced sensations believe followed the opinion of abuse have seen with other drugs is similar. In contrast, a sedative effect nicotine also exert, arousal embraced nervous system level, and a dose of nicotine taken can depend on.

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Studies show women who smoke are 20 times more prone to cancer than men are. One of the worst forms of cancer that generally makes women its victim is Breast cancer.

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