[baran]

I think you have to take these results with a grain of salt. Its better to know ahead of time so you can begin to take steps to ensure that you dont have problems in the future. Genetic predispositions are only a factor, environment and other epigenetic factors also play a major role in determing your phenotype.

[QNguyen]

Agreed, but it's important that companies like 23andme don't market these tools as a complete tool for knowing what you'll get in the future, since there's still plenty more research to be done on many of these markers (and they're definitely not all inclusive of the diseases we face).