Harvard Health Letter

Genetic test kits don’t have all the answers

News briefs Itís tempting to try a direct-to-consumer (DTC) genetic test kit that predicts your risk for developing certain diseases, like Alzheimerís or Parkinsonís. The kit is shipped to your home, where you collect cells (typically with a cheek swab or a saliva collection tube) and then send them to a lab for DNA analysis. But a report from British researchers, published in The BMJ on Oct. 16, 2019, warns that the tests commonly produce…

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