Cancers are primarily an environmental disease. It is nearly impossible to prove what caused a cancer in any individual, because most cancers have multiple possible causes. For example, if a person who uses tobacco heavily develops lung cancer, then it was probably caused by the tobacco use, but since everyone has a small chance of developing lung cancer as a result of air pollution or radiation, then there is a small chance that the cancer developed because of air pollution or radiation. Every year, at least , people die worldwide from cancer related to their workplace. Most cancer deaths caused by occupational risk factors occur in the developed world.
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Risk Factors: Diet - National Cancer Institute
What we eat and drink can affect our health in lots of ways. There are some foods that are directly linked to cancer, but our overall diet is more important than these individually. For most of us, diet also has a big impact on our weight. By having a healthy diet, you can keep a healthy weight or lose weight, which can reduce the risk of cancer. We often hear that a healthy and balanced diet is good for us, but it can be hard to know what this looks like. Find out more about what to put on your plate here. Because of this, we need several big, long term studies to untangle the effect of one food or drink from the rest of our diet.
Vitamin D and Cancer Prevention
The researchers found that most cancers — including lung, colorectal, bladder and thyroid cancers — possessed large numbers of mutations that were likely to have been caused by extrinsic external factors; only a few cancers had large proportions of intrinsic internal mutations. Additionally, the researchers found strong epidemiological evidence supporting the high contribution of extrinsic factors to cancer development. For example, an analysis of immigrants who moved from countries with low cancer incidence to those with high cancer incidence revealed these individuals quickly acquired a higher cancer risk, suggesting extrinsic factors were to blame. Hannun continued.
Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body. Many cancers can be prevented by not smoking, maintaining a healthy weight, not drinking too much alcohol , eating plenty of vegetables , fruits and whole grains , vaccination against certain infectious diseases, not eating too much processed and red meat and avoiding too much sunlight exposure. In , about Cancers are a large family of diseases that involve abnormal cell growth with the potential to invade or spread to other parts of the body.