Polygenic Risk Scores
Polygenic risk scores are expanding genetics into everyday medicine, combining thousands of variants to estimate individual risk for common conditions like heart disease and diabetes.
Genetics has long been associated with rare, single-gene disorders, but polygenic risk scores (PRS) are expanding the field into everyday medicine. PRS combine the influence of thousands of genetic variants to estimate an individual's risk for common conditions like heart disease, breast cancer, and type 2 diabetes.
The power of PRS lies in personalization. Two patients with identical cholesterol levels may have dramatically different genetic risk profiles — and therefore different preventive needs. Clinicians are beginning to use PRS to guide screening intervals, lifestyle recommendations, and even medication decisions.
However, the science is still evolving. PRS accuracy varies across ethnic groups, and interpretation requires careful communication to avoid anxiety or misunderstanding. Still, as datasets grow more diverse and models improve, PRS are poised to become a routine part of primary care.
The future of prevention will be shaped not just by what patients do, but by what their genomes quietly predict.
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The Supper
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