Cancer is not a single disease, but is instead a collection of related diseases that arise from different kinds of cells in the body. Cancer occurs when cells that normally grow in a controlled fashion begin out-of-control growth and continue to divide without stopping. On a molecular level, scientists know that mutations in certain genes contribute to the development of cancer but it is impossible to predict when and where cancer will occur. Genes, lifestyle, and protective/risk factors all play a role in the development of cancer. Cancer prevention is the set of actions a person takes to reduce their risk of developing cancer.
No comments:
Post a Comment