geist1223
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Another thing I have always wondered about is cause and effect of tabacco? If you look at the percentage of people that smoked Tobacco in the 1960's as compared to today there has been a huge drop off. Yet there has not been a similar drop off in COPD, Heart Disease, Lung Disease, etc.
When I asked some Medical Researchers and Industrial Hygienists I know this question. Their honest response was that it can not be demonstrated scientifically that Tobacco is a direct causative factor. It can be demonstrated that tobacco is a contributing factor. But other factors are enviromental, gentics, etc. One of the researchers recalled the experiment from a couple decades ago that allegedly demonstrated that a certain sugar substitute caused bladder (?) Cancer in Lab Rats. She said that when this Study was closely examined that the Rats were being forced to drink when upsized to a human being would be the equivalent of a railroad car of the drink. So did the sugar substitute cause the problem or the irritation from the huge quantity?
When I asked some Medical Researchers and Industrial Hygienists I know this question. Their honest response was that it can not be demonstrated scientifically that Tobacco is a direct causative factor. It can be demonstrated that tobacco is a contributing factor. But other factors are enviromental, gentics, etc. One of the researchers recalled the experiment from a couple decades ago that allegedly demonstrated that a certain sugar substitute caused bladder (?) Cancer in Lab Rats. She said that when this Study was closely examined that the Rats were being forced to drink when upsized to a human being would be the equivalent of a railroad car of the drink. So did the sugar substitute cause the problem or the irritation from the huge quantity?