Re: Lung cancer in non-smokers?
Laura said:
As I understand it, most of the images of lung cancer in "smokers" are really images of lung cancer in people who have worked in mines or in other industries where pollutants other than cigarettes are at high levels.
Blaming it on cigarettes is an easy way to avoid detection and reaction and cost.
Same with blaming obesity on overeating ... distracts attention from the fact that the foods people are eating are causing their metabolisms to go nuts, generating autoimmune diseases, etc.
Seems like black lungs photos (typical miner's disease), are mostly shown as smoker's lungs cancer.
Here are couple of examples of black lungs (and other one of smoker's Emphysema itself, could you see the difference???).
Found couple funny articles where in one doctors can't agree what miner got in his lungs: smoker's Emphysema or black lungs and another one about Miner's silent death, of course black lungs again.
http://www.npr.org/templates/story/story.php?storyId=126021059&ps=rs
http://www.npr.org/templates/story/story.php?storyId=126303910
Black lung effect:
Black lung is a chronic disease associated with long term exposure to coal mine dust. Patients who worked in coal mines contracted the condition as a result of inhaling coal mine dust over a long period of time. It is also called coal workers' pneumoconiosis. It is an occupation condition that leads to lung disease. Another common term for lung disease is athracosis. The risk or the likelihood of contracting the condition increases with continued or increased exposure to coal mine dust. Chances are also raised in people over the age of 50.
Symptoms
1. Common signs of the condition include shortness of breath as a result of blocked airways and passage. A person might heave or wheeze. Another symptom that accompanies the disease includes heavy coughing and with occasional expulsion of sputum.
Trends
2. There was a decrease of the condition by about 90 percent from 1965 to 1995. This was due to the enactment of the Coal Mine Health and Safety Act. This saw a significant drop in cases reported about the problem. However there have been concerns that the problem has more than doubled since 1995. There are reports of severe and advanced cases of the disease in coal miners. This has been noted even in miners as young as thirty years old. The situation has raised concern among health officials as the problem has been developing years after the act was passed.
Causes
3. Continued reports about the problem have not been well understood. One possibility could be inadequate implementation of the coal mine regulations. Failure to comply or enact the policy has been given as another possible cause. Inadequate disease prevention measures to take care of changes in coal mine practices. Workers have been taking long hours on the job which could also lead to the problem which could also lead to the onset of the condition.
Emphysema
4. People suffering from black lung disease suffer from a condition known as emphysema where the organ's air sacs collapse as a result to damage suffered by the walls protecting them. The lung is also extensively scarred as a result of inhaling coal mine dust particles.
Heart Disease
5. Black lung disease might bring about heart problems. This is a result of strained activity of pumping blood lacking sufficient amounts of oxygen. The heart muscles are overworked which causes an enlargement of the right part of the organ.
Death
6. There are patients who suffer disability due to problems associated with failed organs such as the lungs and heart. Black lung disease is also fatal as it leads to premature deaths in most patients where the problem is not diagnosed in time.
Probably the most interesting article about black lungs I found it on:
http://thepumphandle.wordpress.com/2009/01/06/why-is-black-lung-back/
Seems like there's more threat in allready harsh mining environment, not only coal dust. This time problem is in rock contains silica, which is 20 times as toxic as coal dust.
Another interesting article about lung cancer in Industrial area of Liege you can find in here:
http://ukpmc.ac.uk/articlerender.cgi?artid=982909
Last one about lung Problems Caused by Formaldehyde, In the 1970s urea formaldehyde foam was a popular choice to use for insulation of buildings and homes. Exposure to formaldehyde has long been associated with certain diseases and conditions, such as lung problems, you can find in here:
http://www.ehow.com/about_5619669_lung-problems-caused-formaldehyde.html
Or about air pollution, you can read here: http://healthandenergy.com/air_pollution_causes.htm
Cigarettes smoking therats could be last thing to worry about when it comes to lungs problem.