Genetic testing can be both illuminating and intimidating. What exactly is genetic testing, and who might benefit most? We spoke with Huma Q. Rana MD, MPH, Clinical Director of the Division of Cancer Genetics and Prevention at Dana-Farber Cancer Institute and assistant professor of medicine at Harvard Medical School, about the impacts of genetic insights, breaking down the process, addressing logistical hurdles, like gathering your family history, and the range of possible test outcomes positive and what each might mean for your health and the health of your loved ones.