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'''Emphysema''' is a type of chronic obstructive pulmonary disease (COPD) involving damage to the air sacs ([[alveoli]]) in the lungs. As a result, the body does not get the oxygen it needs. Emphysema makes it hard for the victim to catch their breath. They may also have a chronic cough and have trouble breathing during exercise.

'''Emphysema''' is a type of chronic obstructive pulmonary disease (COPD) involving damage to the air sacs ([[alveoli]]) in the [[lung]]s. As a result, the body does not get the [[oxygen]] it needs. Emphysema makes it hard for the victim to catch their breath. They may also have a chronic cough and have trouble breathing during exercise. If untreated, emphysema sufferers often have so much trouble breathing that they must be put on a [[respirator]]. The disease is often fatal, but the death is very slow and painful.

The most common cause is cigarette smoking. Quitting can help prevent getting-or alleviate-the disease.<ref>http://www.nlm.nih.gov/medlineplus/emphysema.html</ref>

The most common cause is cigarette [[smoking]]. Quitting can help prevent getting the disease or alleviate its effects. <ref>http://www.nlm.nih.gov/medlineplus/emphysema.html</ref>

==References==

==References==