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A member asked:

Why do some people get cancer and others in the family dont?

A doctor has provided 1 answer

Gentics and : Environment. Cancers are complex diseases and arise from a combination of genetic and environmental factors. Both genes and environment differ for even members of the same family. Not only cancers but other diseases affect different members differently due to variations in genetic makeup, diet, occupation etc.

Answered 7/28/2012

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