About a year ago, I think I posted about my mom's DNA test results. Her brother had given her the Ancestry DNA test as a present. She spit in the bottle, sent it in, and three months later got her results. In short, we were VERY surprised by what they told her: They said she was 53% Italian, a smattering of Iberian (Spanish), Middle Eastern (in this case, North Africa), and... combined, about 43% Eastern European Jew! (I don't know how you geographically pin down a religion like that, but that's what they said.) Well, we checked again last week and Ancestry had updated her results: 94% Italian (Sicilian from the province of Palermo), 5% Greek (makes sense, being Sicilian and all), and 1% Middle Eastern (from North Africa, which also makes perfect sense, being Sicilian and all). So, in less than a year, we've lost our Jewish heritage that we never knew we had -- I'm so sad! And, the results reflect exactly what we had known all along before we ever sent in the test. The explanation on the Ancestry site says that, when they first did the test, they had 3,000 reference samples. Now, they have almost 20,000, which obviously altered the results. I wonder how it will change when they have 100,000 samples? This is a just an illustration of why I've always said that these tests are a novelty at best. My uncle, whose results from 23 and Me differed from my mom's, freaked out and now believes his father was cheating on his mother. With no evidence. (Yeah, he tends to overreact to things -- He's still a great guy, so we don't hold it against him.) All because of a test that is so unreliable that the results can change significantly in less than a year. (And, as I've said before, I don't know why people put so much stock in their ancestry anyway. I couldn't care less about a bunch of people I never knew existed or a country that I have no history with or real knowledge of. As an American, my cultural history is British; I can tell you what was happening in England in 1066 and 1215, but ask me what was going on in Italy during those times and I have no freakin' idea.) Has anyone else taken one of these tests and had a similar experience?