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  • BBC Science Focus Magazine

    GENETIC TESTING

    Dec 27, 2022 4 minutes

    Actor Chris Hemsworth, who you might know as Thor in the Marvel Cinematic Universe, recently announced that he was taking a break from the limelight after carrying out a genetic test that highlighted he had a heightened risk of developing Alzheimer's disease. To find out whether we all ought to be considering testing ourselves, we spoke to Sir Peter Donnelly, CEO and co-founder of Genomics PLC, and emeritus professor of statistical science at the University of Oxford, about what genetic screening can tell us about our health.

    WHAT HAPPENS WHEN SOMEONE TAKES A GENETIC TEST?

    Usually, the test would involve taking a biological sample from the individual. Typically, that's either a blood sample, or a saliva sample. Then the sample

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