Adoption affects access to information about a person's history, most significantly for the person who was adopted. As this post reveals, it can also affect the parents who have adopted a child with complex medical needs and no clear underlying cause.

Anna Childers is a genetic counselor who interviewed adult adoptees on their perspectives on DNA testing.

How do you know if a DNA company you found online is reputable? And whether its results are reliable?

With the growth of tests like those from Ancestry and 23andMe, questions naturally arise. These tests promise to connect people to unknown genetic relatives, reveal ethnic background, and possibly uncover latent health factors.

Are you giving a DNA test as a gift this holiday season? Here are some things to consider before making this decision.

Social and regular media are filled with information about all the genetic tests available and the latest genes discovered by researchers. You can’t help but wonder whether you should be tested and what the results might mean. So where do you turn?

When you have an allogeneic bone marrow or stem cell transplant, the blood-producing cells in your bone marrow are killed off by radiation or chemotherapy and then replaced with functioning cells from another person.

The number one question I get from family, friends, and colleagues is this: "Hey Brianne, which ancestry test do you recommend?"

23andMe now provides FDA-approved reports on Parkinson's disease risk, and I thought readers could benefit from a post specific to the condition. This guest post was written by my friend and former colleague, Lola Cook Shukla, who specializes in the genetics of Parkinson's disease.

and gain access to raw data files hasn’t fixed that basic issue. So, if you are going to download a raw data file from an at-home DNA test like 23andMe or AncestryDNA or a project like All of Us, here are eight key points to be aware of.