Evaluate Your Risk for Common Cancers

DNA tests can also tell you if you are at risk for certain hereditary cancers, such as breast cancer, ovarian cancer, colon cancer, and skin cancer. While these cancers are not directly caused by a mutated gene (as genetic diseases are), your risk of developing cancer may be significantly increased if you have one or more specific mutations.

Mutations in the BRCA 1 and 2 genes, for example, have been linked to breast cancer. Having these mutations does not guarantee that you will get this type of cancer, but it does increase your risk. You might want to start getting annual mammograms in your 30s rather than your 40s.

You can check out Futura Genetics' DNA testing kit if you have a family history of cancer. It provides screening for eight different cancers with a genetic link, as well as detailed information on what your results mean for you.