San Diego-based research lab Scripps Translational Science Institute (STSI), the study's main sponsor, will offer genetic scans to up to 10,000 employees, family members and friends of Scripps Health that provide a detailed analysis of their risk for more than 20 health conditions. Scripps Health is a US$2 billion nonprofit community health system also based in San Diego.

The conditions -- including diabetes, obesity, heart attack and some forms of cancer -- are ones that can be changed or prevented by people's lifestyle choices. Scripps will then track changes in the participants’ behaviors over 20 years to see if people who learn they are at risk for certain diseases or conditions will actually take preventative measures to avoid them, Microsoft said.

Microsoft is contributing its service to the study. HealthVault is Microsoft's online repository for storing patient information and allowing it to be shared, at the discretion of patients, with health care providers and other parties they trust with it, such as their insurance companies. Using HealthVault, study participants can store, track and manage health and lifestyle information over the course of the study, Microsoft said.

Genetic testing service provider Navigenics of Redwood Shores, California, and Affymetrix of Santa Clara, California, which provides hardware and software to do genetic testing, also are co-sponsoring the study and contributing technology to it.

Affymetrix will scan the genomes of participants, while Navigenics will interpret the scan results and offer guidance to study participants to help them prevent future health conditions, or at least lessen the negative impact of them.