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Smoking And Its Effects Essay

1593 words - 7 pages

History: European explorers who arrived in the Western Hemisphere in the 1500s observed Native Americans smoking tobacco plant leaves in pipes. The colonists who followed them grew tobacco plants as a cash crop for export, and smoking became part of European culture by the 1600s. Most tobacco was consumed in pipes and cigars or as snuff (finely pulverized tobacco inhaled into the nostrils). This pattern changed by the early 20th century, by which time smokers consumed more than 1,000 cigarettes per capita each year in the United States and some European countries.Inhaling the smoke of tobacco leaves. Tobacco contains the drug nicotine, which is a stimulant and can be addictive, as well as ...view middle of the document...

One other species of Nicotiana is cultivated for its high nicotine content (up to 9 per cent of the leaf), which is extracted for use as an insecticide, though its toxicity is a severe disadvantage.Tobacco smoke, particularly from cigarettes, is a direct cause of lung and other cancers, and smoking is the single most important avoidable cause of cancer in humans.It also causes air pollution .It is the main problem arising from the combustion of fossil fuels in the Greenhouse effect resulting mainly for the production of carbon dioxide.Now pesticides have been discovered in Antarctica, where they have never been used, indicating that the atmosphere can carry pollutants over large distances.Smoking is not only the cause but also lead tetraethyl and the burning of fossil fuels..Burning tobacco is the main source of indoor pollution in the developed world as it contains over 4,000 dangerous chemicals.Some general facts about smoking: About 111,000 people die every year due to smoking or passive smoking. One person dies every 5 minutes from smoking related diseases. The NHS spend over four hundred million pounds each year on treating smoking related illnesses. Cigarettes and other smoking materials are a very common cause of fires. Smoking materials account for almost 240 deaths every year. Out of 6,600 fires 40% are caused by smokers - that's 2,640 fires!Believe it or not:Did u know that each cigarette manufacturing machines uses 4 miles of paper per hour which could be used instead for many other important things.Tobacco is the most widely grown non-food crop in 120 countries therefore less land is available for food crop. Between 10 to 20 million people could be fed if food crop was grown in its place.One whole tree is needed to cure the tobacco for 300 cigarettes . Cigarette smoke generates contains two of the main gases related to the greenhouse effect they are carbon dioxide and methane. During World War II (1939-1945) American physicians endorsed sending soldiers tobacco, and cigarettes were included in the field ration kits of U.S. armed forces personnel until 1975.What smoking causes? Heart Disease - Nicotine raises blood pressure making the heart work harder therefore it needs more oxygen which is cut down by carbon monoxide from getting to the heart. This causes severe heart attacks.Lung Cancer - This starts with a smokers cough producing lots of phlegm. Chest infections and bronchitis begins causing the lungs to be destroyed.Some facts about heart didease and lung cancer:Lung disease is the number three killer in America, responsible for one in seven deaths.Lung disease and other breathing problems are the number one killer of babies younger than one year old.Today, more than 30 million Americans are living with chronic lung disease such as asthma, emphysema and chronic bronchitisIt is estimated that about half the deaths in the developed world are caused by cardio-vascular disease.In developing countries, cardio-vascular disease accounts...

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