Have you had your genetics tested? If you have, you’re not alone, for interest in genetic testing has risen remarkably of late: In 2017, suppliers sold more to-consumer genetic testing kits than in all previous years combined . People purchasing the tests probably felt that knowledge of their DNA could help them tailor their lifestyles to their genetic code, thereby optimizing their health and performance. (Dan spoke about this a little in an episode of humanOS Radio with Alon Keinan .) But does genetic testing actually help people feel and function better? If you collate the results of relevant studies, it seems that receiving information about genetics scarcely affects the health decisions people make . And because some believe that their genetic blueprint strongly determines their lives’ trajectories, numerous studies have shown that many of us feel disempowered and distressed on learning our genetic dispositions to disease. Until recently we knew nothing about an important ques