Despite the limitations, DTC testing can be beneficial in three main ways. To begin with, consumers who find that they are at increased risk of, for example, heart attack, can alter their lifestyles in an attempt to prevent the likelihood of having one. Additionally, with the assistance of knowledgeable doctor or genetic counselor, information on the risk of being a carrier of a genetic condition can be useful for parents who are considering conceiving a child. Finally, knowing that you may have a higher than average risk of developing certain cancers can help you and your doctor create a preventive plan, including earlier and more frequent screenings. For most cancers, early detection is key for effective treatment.