They were all the rage when they first came out, but as time has gone on the allure has fizzled some. That's right- DNA tests. It's kind of fun to see where your roots lie and to discover new family members and many of the platforms have upgraded to show DNA health data as well. Really what that boils down to is metabolism or allergy related information in most cases. What is more interesting is the number of cold cases that have been closed due to voluntary DNA submissions.