Sunday, August 28, 2016

Most Common Diseases of Ages of 50 Plus: Cancers - Environmental Causes of cancers

Kyle J. Norton(Scholar and Master of Nutrients, all right reserved)
Health article writer and researcher; Over 10.000 articles and research papers have been written and published on line, including world wide health, ezine articles, article base, healthblogs, selfgrowth, best before it's news, the karate GB daily, etc.,.
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Among elderly men, cancer of the prostate (451 per 100,000), the lung (449 per 100,000) and the colon (176 per 100,000) make up around half of all diagnosed cancers. Prostate cancer is around 22 times more frequent among elderly men than among younger men. The corresponding most frequent cancers among elderly women, making up 48% of all malignant cancers, are breast (248 per 100,000), colon (133 per 100,000), lung (118 per 100,000) and stomach cancer (75 per 100,000), According to the Danish Cancer Society, Institute of Cancer Epidemiology(PubMed)

Cancer is a class of diseases in which a group of cells growing and multiplying disordered and uncontrollable way in our body, have become progressively worse and damaged other healthy tissues, sometimes spreads to other organs in the body via lymph or blood and results may be in death.

Cancers are primarily an environmental disease with 90-95% of cases attributed to environmental factors and 5-10% due to genetics.
Causes of cancer can be divided into 2 groups

                       Environmental Causes of cancers

Most common environmental factors cause of cancers include tobacco, diet and obesity, infections, radiation, lack of physical activity, and environmental pollutants. Sometimes, The environmental factors can enhance abnormalities in the genetic material of cells as s result of weakened immune system.
1. Chemicals
Chemicals such as chlorinated hydrocarbons, asbestos, and hexavalent chromium, have been shown to be carcinogenic can enhance DNA mutations, leading to the growth of cancer. There are some chemicals which can promote cancers by stimulating the rate of cell division, leading to less time for repair enzymes to repair damaged DNA during DNA replication, increasing the risk of cancer.
2. Diet
In the United States obesity is associated with the development of many types of cancer and is a factor in 14–20% of all cancer death. Even through there are no direct link of obesity to cancer risk but it may have a negative effects on immune system and endocrine system.
3. Infection
Worldwide approximately 18% of cancers are related to infectious diseases. There is an indication of which viruses are usual infectious agents that cause cancer but bacteria and parasites may also have an effect.
4. Radiation
Radiation can cause cancer in most parts of the body, in all animals, and at any age, although radiation-induced solid tumors usually take 10–15 years, and up to 40 years, to become clinically manifest, and radiation-induced leukemias typically require 2–10 years to appear, due to radiation exposure, including both ionizing radiation and non-ionizing radiation.
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