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Carcinogens,.. cancer formation mechanisms and conditions. How to care about cancer Cancer formation mechanisms and conditions. DNA and the story of genes: Since our DNA has our genes code, it's responsible for making all cells in human body. When DNA is healthy it will work just fine. However, sometimes damage to cells my takes place due to certain factors such as food , irradiation or other environmental agents. Since DNA is a loyal copying machine for our cells and the associated genes, it will replicate just what it has, which is in this case more faulty cells. Here are the good news! Our immune system is well qualified to clean out ill or damaged cells. That is the great secret of our creation. So why to worry and how come many people get this serious killer? The fact is that we hurt our immune system by loading our body with various toxins such as polluted air, unsuitable water, alcohols, caffeine, pesticides, manufactured foods, etc. There is even more than that, stress...

Health risks are not taking rational so the answer is no. True rationality about these health risks would imply changed behavior, in which no one would smoke or use cocaine, and everyone would wear seat belts and control fat and calorie intakes. Each stress-managed day would include adequate exercise. We would never waste time or money achieving a glamorous tan. We'd be careful not to let our hand slip during a cocktail party discussion of artificial sweeteners and unconsciously grab a handful of fat-laden peanuts that could contain carcinogenic aflatoxins. (Ironically , the sweeteners that were the subject of discussion are statically less dangerous than drugs, fat, aflatoxin, or suntanning.) Many people choose not to stop smoking, not to exercise, and not to reduce blood lipid levels even though the health risk of coronary heart disease is then six times higher than when none of these risk factors is present(82 per 1,000 compared to an average risk of 13 p...

Threshold hypothesis is a theory that it has it's believers, believers in the threshold hypothesis believe that carcinogens, like other toxic compounds, have a no-effect level and a threshold dose. 1. Animal systems have a variety of defense mechanisms able to detoxify and dispose of xenobiotic chemicals. Many factors determine whether a particular chemical is activated to become a carcinogen or is rendered innocuous. 2. The high doses used in many experiments for carcinogenicity can change normal processes of cellular activation and deactivation and can overwhelm natural defense mechanisms. Tumors may be due to secondary effects of toxicity and tissue damage from excessive amounts of the fed compound. 3. Even in cases where the DNA is actually damaged, repair of the damage has been documented. Only under conditions in which the repair mechanisms are exhausted will the damage become irreversible. 4. Not all species show the same susceptibility. 5. D...

Natural Toxicants, why they are unnoticed? Natural toxicants including carcinogens, often go unnoticed as a consumer concern and are of only moderate concern to the industry and the FDA . One reason why these remain unnoticed is that the media do not focus on this area, and the laws deal only with hazards created by food additives, not with hazards naturally associated with foods. The other is the consumer belief , that natural foods couldn't possibly cause any problems. There are risks that appear to consumers as both old  and familiar and therefore without any shock value. In actuality , natural toxicants can be hazardous, especially if the diet is distorted by excessive consumption of certain foods or the omission of foods that provide essential nutrients. Even though government , industry , consumers, and consumer activities have different degrees of concern for the various issues that comprise food safety, these various segment can and must work together to e...