combines research in the areas of nanotechnology, biosensors, body networks and smart homes to give consumers the tools to take control of their health and maintain their lifestyle. This emerging network of technologies can also help to create a web of interpersonal relationships that can reinforce healthy behaviors and medical compliance. The detailed, continuous and individual data from such a network is synergistic with advances in both human genome and conventional medical research, and offers the potential for creation of a data-rich, personalized, and preventative medical science. Research areas include: development of microfabricated biosensors for health and lifestyle maintenance; wearable systems and smart environments; data-rich, personalized medical science; and feedback systems for reinforcing healthy behavior and medical compliance, and for promoting self-knowledge.