Table of contents;
Introduction…
What cigarettes are made of…
How smoking damages lungs…
Cancer risks…
Passive smoking…
Smoking when pregnant…
Conclusion…
Bibliography…
Introduction
In this case study, I will try to show evidence for the good (if any), and bad points of smoking. How it affects your health, and others around you. I will also come up with a conclusion at the end, and all necessary links used will be shown on the Bibliography page.
What are cigarettes made of
Cigarettes are not just made of tar, tobacco and nicotine.
More than 600 additives can legally be added to tobacco products.
These include coffee extract, sugar, vanilla, cocoa, menthol, oil from clove stems, caramel and chlorophyll, the compound that gives plants their green colour.
Many appear to be present simply to add flavour.
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How smoking damages lungs
Cigarette smoke contains many substances, which can damage the lungs. The actual smoke has two parts: tiny solid pieces, which contain tar, and the gas, which contains carbon monoxide and nitrogen oxides. Smoking takes these poisonous substances directly into your lungs. The filters in most cigarettes are of some benefit, but they still let most of the harmful chemicals into your lungs.
The tar in cigarette smoke damages cells in the airways of your lungs. Eventually this damage can produce cells that grow uncontrollably - leading to cancer of the lung or voice box.
Because of this, your body sends protecting cells to your lungs to try and defend them, but cigarette smoke destroys them. The dead cells then release substances that damage the structure of the lung. This leads to ‘Chronic Obstructive Pulmonary Disease’ (COPD).
Cigarette smoke also releases substances into your bloodstream that damage other organs. The arteries can be affected in your heart, brain and other places. This can lead to angina, heart attacks, strokes and poor circulation. It
Bibliography: http://news.bbc.co.uk/ http://www.ash.org.uk http://www.health.discovery.com Josh Britz 9L