Abstract
In The U.K., a heated debate is raging in the genetics community about a not-so-new technology and its role in public health. Cheap genetic tests to discover our ancestry have become familiar consumer products, and our genes can tell us a lot about our ancestry, so it is an appealing idea that they can tell us about our susceptibility to serious diseases. Polygenic risk scores (PRS)-generated by sequencing multiple parts of a person's DNA-are said by some to hold the key to helping people avoid everything from type 1 diabetes to cardiovascular disease and cancer. This could herald a new era of preventive medicine, and the U.K. is investing heavily, but ultimately, whether or not this a good investment is still being determined.
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