Plant whose leaves are smoked: a plant of the nightshade family, cultivated for its large leaves that are dried and processed primarily for smoking. Native to: tropical America. (http://www.bing.com/Dictionary/search?q=define+tobacco&qpvt=definition+of+tobacco&FORM=DTPDIA)
Used by smoking or chewing
Chemicals in Tobacco
Each day, more than 3,800 persons younger than 18 years of age smoke their first cigarette.
EFFECTS OF SMOKING
- Pain or burning in the throat and lungs
- Chemicals above can kill in high doses
- Throw us the first few time
- Heart disease
- Lung, throat and stomach cancer
- Risk of infections like bronchitis and pneumonia.
- Bad skin
- Bad breath
because you still don't believe me
- The risk of developing lung cancer is about 23 times higher among men who smoke cigarettes and about 13 times higher among women who smoke cigarettes compared with never smokers.
- Smoking causes coronary heart disease, the leading cause of death in the United States. Cigarette smokers are 2–4 times more likely to develop coronary heart disease than nonsmokers.
- Cigarette smoking approximately doubles a person's risk for stroke.
In children, secondhand smoke causes the following:3
- Ear infections
- More frequent and severe asthma attacks
- Respiratory symptoms (e.g., coughing, sneezing, shortness of breath)
- Respiratory infections (i.e., bronchitis, pneumonia)
- A greater risk for sudden infant death syndrome (SIDS)
SECOND HAND SMOKE!
Passive smoking is the inhalation of smoke, called secondhand smoke (SHS) or environmental tobacco smoke (ETS), from tobacco products...
Main stream smoking is refers specifically to the smoke that a smoker inhales and then exhales. This is the most common type of second hand smoke. Sidestream smoke, on the other hand is smoke which goes into the air directly from a burning cigarette, cigar, or smoking pipe. This is also a main concept of second hand smoke.
In children, secondhand smoke causes the following:Ear infections More frequent and severe asthma attacks Respiratory symptoms (e.g., coughing, sneezing, shortness of breath) Respiratory infections (i.e., bronchitis, pneumonia) A greater risk for sudden infant death syndrome (SIDS)
In children aged 18 months or younger, secondhand smoke exposure is responsible for— an estimated 150,000–300,000 new cases of bronchitis and pneumonia annually, and approximately 7,500–15,000 hospitalizations annually in the United States.
Why are cigarettes so addictive?
Cigarettes have similar chemicals as heroine and can be just as addictive. People who start before age 21 will have the greatest difficulty in quitting.
Users have an increased risk for lung diseases like lung cancer, heart disease, and stroke. Chewing tobacco users also may suffer from cancers of the mouth and neck.
Signs of nicotine withdrawal
Nicotine withdrawal occurs when you suddenly stop smoking or using tobacco after using it for a long time. It can also occur if you cut back on the number of cigarettes or amount of tobacco products you use. Nicotine withdrawal creates anxiety, irritability, headache, hunger, and a craving for cigarettes or other sources of nicotine. These symptoms peak 12 to 24 hours after quitting and then slowly go away.