Private companies are starting to test customers' DNA for gene variants linked to an increased risk of conditions such as obesity or Alzheimer's disease. Helen Pearson looks at whether knowledge really is power when it comes to disease avoidance.
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See also Correspondence: Genetic testing must recognize impact of bad news on recipient
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Pearson, H. Genetic testing for everyone. Nature 453, 570–571 (2008). https://doi.org/10.1038/453570a
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DOI: https://doi.org/10.1038/453570a
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