What are the two main categories of tobacco? What types of tobacco can you name?

Tobacco plants The tobacco plant has large leaves that are cured, fermented and aged before they are manufactured into tobacco products

There are over 4,000 different chemicals contained in each cigarette times higher in spit tobacco. 40 of the 4,000 are cancer causing agents known as Carcinogens.

Ground tobacco that is chewed or inhaled through the nose eless+tobacco eless+tobacco

Burning of tobacco and inhaling the resulting smoke/chemicals

Greater awareness of the negative health effects of smoking, along with increased restrictions, has led to a steady decline in rates of smoking Tobacco use tends to be more common among people with lower levels of education and income. Most people who smoke begin between the ages of 11 and 15.

Secondhand smoke- environmental tobacco smoke (any smoke) Side stream smoke- smoke that comes directly from a burning cigarette Mainstream smoke - smoke that is exhaled by a smoker Passive smoker- a nonsmoker who breathes in secondhand smoke

ette-Ingredients.html ette-Ingredients.html Nicotine- an addictive drug found in tobacco leaves and in all tobacco products Carbon monoxide- a poisonous, colorless, odorless gas Tar- a thick, oily, dark liquid that forms when tobacco burns

The nicotine in tobacco smoke travels quickly to the brain, where it acts as a stimulant and increases heart rate and breathing. Tobacco smoke also reduces the level of oxygen in the bloodstream, causing a drop in skin temperature. Research has shown that smoking raises levels of dopamine, a chemical in the brain, increasing feelings of pleasure and reinforcing the desire to continue to smoke.

Nervous system- withdrawal symptoms (nervousness, shakes and headaches) increased risk of stroke due to lack of O2 to brain Circulatory system- HR increases, energy reduced because less O2, blood vessels are weakened and narrowed and risk of heart disease increases Respiratory System- shortness of breath, coughing, more phlegm. Allergies, asthma and bronchitis increase. Lung cancer, emphysema and COPD. Digestive System- upset stomach dulled taste and tooth decay. Risk cancer of mouth and throat, stomach ulcers and bladder cancer increases.

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