Full Potential - Genetic Testing and the Rise of Personalized Medicine

Genetic testing, also known as DNA testing, allows the genetic diagnosis of vulnerabilities to inherited diseases, and it's spawned an entire industry around personalized fitness, assessing a child's athletic ability, and even for finding your perfect mate. Direct-to-consumer genetic testing is being used by a growing number of people to make important health and life decisions, despite these tests being largely inaccurate. What are the consequences of using these faulty methods to make "healthy life choices" and is there any benefit in any of it?