We 're very curious about ourselves . '' Handful of firms from 23andMe to DeCode offer DNA tests to individuals . But how much health-relevant information can be gleaned is hotly debated . The first thing you need to know about the science behind genetic testing is that it has been around for a long time, and it’s not always reliable.
Handful of firms from 23andMe to DeCode offer DNA tests to individuals . But how much health-relevant information can be gleaned is hotly debated . The first thing you need to know about the science behind genetic testing is that it has been around for a long time, and it’s not always reliable.