Smoking Causes Lung Cancer, Mouth cancer, Gangrene and other fatal diseases - World No Tobacco 2015 Inspiration Video
Harms of Cigarette Smoking and Health Benefits of Quitting http://www.cancer.gov/about-cancer/causes-prevention/risk/tobacco/cessation-fact-sheet
Does tobacco smoke contain harmful chemicals?
Yes. Tobacco smoke contains many chemicals that are harmful to both smokers and nonsmokers. Breathing even a little tobacco smoke can be harmful (1-4).
Of the more than 7,000 chemicals in tobacco smoke, at least 250 are known to be harmful, including hydrogen cyanide, carbon monoxide, and ammonia (1, 2, 5).
Among the 250 known harmful chemicals in tobacco smoke, at least 69 can cause cancer. These cancer-causing chemicals include the following (1, 2, 5):
Acetaldehyde
Aromatic amines
Arsenic
Benzene
Benzo[α]pyrene
Beryllium (a toxic metal)
1,3–Butadiene (a hazardous gas)
Cadmium (a toxic metal)
Chromium (a metallic element)
Cumene
Ethylene oxide
Formaldehyde
Nickel (a metallic element)
Polonium-210 (a radioactive chemical element)
Polycyclic aromatic hydrocarbons (PAHs)
Tobacco-specific nitrosamines
Vinyl chloride
What are some of the health problems caused by cigarette smoking?
Smoking has been found to harm nearly every bodily organ and organ system in the body and diminishes a person’s overall health.
Smoking is a leading cause of cancer and death from cancer. It causes cancers of the lung, esophagus, larynx, mouth, throat, kidney, bladder, liver, pancreas, stomach, cervix, colon, and rectum, as well as acute myeloid leukemia (1-3).
Smoking causes heart disease, stroke, aortic aneurysm (a balloon-like bulge in an artery in the chest), chronic obstructive pulmonary disease (COPD) (chronic bronchitis and emphysema), diabetes, osteoporosis, rheumatoid arthritis, age-related macular degeneration, and cataracts, and worsens asthma symptoms in adults. Smokers are at higher risk of developing pneumonia, tuberculosis, and other airway infections (1-3). In addition, smoking causes inflammation and impairs immune function (1).
Since the 1960s, a smoker’s risk of developing lung cancer or COPD has actually increased compared with nonsmokers, even though the number of cigarettes consumed per smoker has decreased (1). There have also been changes in the type of lung cancer smokers develop – a decline in squamous cell carcinomas but a dramatic increase in adenocarcinomas. Both of these effects may be due to changes in the formulation of cigarettes (1).
Smoking makes it harder for a woman to get pregnant. A pregnant smoker is at higher risk of miscarriage, having an ectopic pregnancy, having her baby born too early and with an abnormally low birth weight, and having her baby born with a cleft lip and/or cleft palate (1). A woman who smokes during or after pregnancy increases her infant’s risk of death from Sudden Infant Death Syndrome (SIDS) (2, 3). Men who smoke are at greater risk of erectile dysfunction (1, 6).
Cigarette smoking and exposure to tobacco smoke cause about 480,000 premature deaths each year in the United States (1). Of these premature deaths, about 36 percent are from cancer, 39 percent are from heart disease and stroke, and 24 percent are from lung disease (1). Smoking is the leading cause of premature, preventable death in this country.
Regardless of their age, smokers can substantially reduce their risk of disease, including cancer, by quitting.
What are the risks of tobacco smoke to nonsmokers?
Secondhand smoke (also called environmental tobacco smoke, involuntary smoking, and passive smoking) is the combination of “sidestream” smoke (the smoke given off by a burning tobacco product) and “mainstream” smoke (the smoke exhaled by a smoker) (4, 5, 8, 9). The U.S. Environmental Protection Agency, the U.S. National Toxicology Program, the U.S. Surgeon General, and the International Agency for Research on Cancer have classified secondhand smoke as a known human carcinogen (cancer-causing agent) (5, 9, 10). Inhaling secondhand smoke causes lung cancer in nonsmoking adults (1, 2, 4). Approximately 7,300 lung cancer deaths occur each year among adult nonsmokers in the United States as a result of exposure to secondhand smoke (1). The U.S. Surgeon General estimates that living with a smoker increases a nonsmoker’s chances of developing lung cancer by 20 to 30 percent (4).
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