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Smoking Just how bad is smoking?
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Smoking Smoking is especially bad for kids
Kids’ Lungs are still growing Lungs of kids who smoke will never be as well developed as they should have been Smoking slows lung growth and reduces the oxygen available for muscles used in sports
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Cigarettes Cigarettes are dried tobacco leaves rolled up in thin paper
When a cigarette is smoked, tobacco is burned, smoke and hot gases are then drawn into the lungs Chemicals in the smoke pass through the linings of the nose, mouth, throat and lungs Some chemicals pass through the blood and are carried throughout the body -- smoking tobacco
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Chewing Tobacco Chemicals pass into saliva then through the lining of the mouth and into the blood Snuff – fine powdered form of Tobacco, it is sniffed through the nose, chemicals then move through the nose lining and into the blood
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Nicotine Nicotine is an extremely powerful and addictive drug
It is one of the most important chemicals in tobacco It acts on the heart and blood vessels making them pump faster It may speed up your breathing rate
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Nicotine Contd. It affects the brain as well as the heart
It can reach the brain only eight seconds after a person inhales Many people are addicted because it helps them focus and it produces feelings of pleasure and relaxation
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Withdrawal Symptoms When a person stops smoking there aren’t as many signal chemicals around in their body anymore The brain’s pleasure centers do not get as many messages This makes the person irritable, restless, hungry, headachy, and depressed
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Cigarette Characteristics
The smoke contains more than 4,000 different chemicals The temperature inside the cigarette can go as high as 2,000 degrees Fahrenheit This tremendous heat breaks down the tobacco and produces chemicals such as CO
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Tar in Cigarettes It contains a tar mix of gummy chemicals that stick to the airways and settle in the lungs Tar is what stains, smells, and dulls the senses Smokers often lose their appetites because tar makes the food not taste as good Chemicals in the tar can damage cells and cause cancer
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How the Respiratory System is Harmed
1.Hot gases are drawn in which burn the delicate cells that line the nose, throat, and airways The cilia are damaged on the surface of cells which stops the cilia from sweeping out dust and other particles One cigarette slows down cilia and heavy smoking destroys them completely
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How the Respiratory System is Harmed
2. The mucus builds up because the cilia are damaged The smoker has to work extra hard to cough the gunk out This is called “smoker’s cough”
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How the Respiratory System is Harmed
3. Damage to the cells lining the airways allows germs to get inside the body more easily Smokers tend to get more colds and other respiratory illnesses than non-smokers Damage to airways causes inflammation (redness and bronchitis) The space inside the bronchi narrows It becomes harder to breathe Mucus builds up and the smoker continually coughs trying to bring it up through the narrowed airway
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Resources www.cdc.gov/tobacco www.tobaccofreekids.org
Smoking, Alvin Silverstein Cigarettes, Elaine Landeau
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