Cancers are primarily an environmental disease with 90-95% of cases due to environmental factors and 5-10% due to genetics. "Environmental", as used by cancer researchers, means any cause that is not genetic, and includes everything from natural sunlight to industrial pollution to viruses to behavioral choices to old age. Most environmental causes, such as naturally occurring background radiation, are not modifiable or controllable. Common environmental factors that lead to cancer death include: tobacco (25-30% of deaths), diet and obesity (30-35%), infections (15-20%), radiation (both ionizing and non ionizing), stress, lack of physical activity, and environmental pollutants.
Wednesday, January 26, 2011
Causes:-
Cancers are primarily an environmental disease with 90-95% of cases due to environmental factors and 5-10% due to genetics. "Environmental", as used by cancer researchers, means any cause that is not genetic, and includes everything from natural sunlight to industrial pollution to viruses to behavioral choices to old age. Most environmental causes, such as naturally occurring background radiation, are not modifiable or controllable. Common environmental factors that lead to cancer death include: tobacco (25-30% of deaths), diet and obesity (30-35%), infections (15-20%), radiation (both ionizing and non ionizing), stress, lack of physical activity, and environmental pollutants.
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