Preimplantation genetic testing has opened up a world of helping families have successful pregnancies. But when does the testing and selection of embryos go too far? In this episode of Inside Reproductive Health, Griffin talks to Dr. Jamie Metzl, author of Hacking Darwin: Genetic Engineering and the Future of Humanity. They discuss the implications of advanced technologies such as the future of embryo screening and gene-editing. More importantly, Dr. Metzl discusses the significance of understanding the coming technologies and how those in the fertility field can help prepare their patients and the rest of the world for these changes.