What it is
A polygenic risk score (sometimes called a PRS or genomic risk score) looks at many places in your DNA at once. Each variant may add only a tiny bit of influence, but together they can be summed into a single score that suggests whether inherited tendencies toward a condition such as coronary artery disease may be higher or lower compared with a reference group.
This is different from single-gene genetic heart testing, which looks for specific disease-causing variants linked to conditions like cardiomyopathies, arrhythmia syndromes or familial high cholesterol. A polygenic score reflects broad, combined influence and does not point to one faulty gene.
A score shows risk, not certainty. It does not diagnose heart disease, and it cannot say whether or when a heart problem will happen. Lifestyle, environment, other health conditions and family history all matter too. Because the science and the way scores are calculated continue to evolve, results may differ between labs and may be interpreted differently across ancestry groups.
How it’s traditionally been approached
Heart disease risk has traditionally been assessed through personal and family history, a physical exam, blood pressure readings, bloodwork such as cholesterol and blood sugar, and sometimes imaging or other cardiac tests. Clinicians often combine these into risk estimates to guide conversations about prevention.
Single-gene genetic heart testing has typically been considered when there is a strong family history, an early-onset heart condition, or a suspected inherited syndrome. Genetic counselors and cardiologists generally help decide whether testing makes sense and how to interpret it.
Polygenic risk scores are a newer addition to this landscape. How and whether they are used in routine care varies among clinicians, and many tests offered are laboratory-developed or consumer-facing, so it is reasonable to ask a provider about the regulatory status and how a particular test has been validated.
How the right cardiologist may help
The right cardiologist, preventive cardiology specialist or genetic counselor may help you understand where a polygenic risk score fits alongside everything else known about your health. A first visit generally involves reviewing your personal and family history, current medications and past test results, and talking through your goals and concerns.
They may help you consider whether a score, single-gene genetic heart testing, or neither is a reasonable step for you, and what the results could and could not tell you. Genetic counseling before and after testing is generally recommended, and if a disease-causing variant is ever found, cascade (family) testing may be discussed for relatives.
Questions you might bring: What can this score tell me that my existing risk assessment cannot? How was this test validated for people of my ancestry? Could the result change my care? How is my data stored and shared? Does insurance cover it? Cardiac rehab and prevention programs may also be part of the broader conversation about heart-healthy habits.
The whole-person view
Body, mind and stress influence each other. Learning about inherited risk can stir up worry, relief, guilt or uncertainty, and ongoing stress can in turn affect sleep, eating, movement and how the body feels. Seeing the whole person, not just a number, can make the information easier to carry.
Some people find body-based support helpful, such as the approaches listed through Somatic Experiences, while others value talk therapy through Therapists.plus. Either may complement, never replace, care from a licensed cardiology team, and every approach has a place for different people.
Somatic Experiences: nervous system regulation →Somatic Experiences: embodiment and movement →Therapists.plus: anxiety panic and ocd →Therapists.plus: mind body connection →
Keep in mind
- This page is educational only and is not medical advice; licensed professionals should guide any decisions about testing and care.
- Genetic tests show risk or carrier status and do not diagnose heart disease on their own. A negative or low-risk result does not rule out risk, and a variant of uncertain significance is not a diagnosis.
- GINA protects against genetic discrimination in US health insurance and employment, but it does not cover life, disability or long-term-care insurance, so ask about those before testing. Coverage for testing varies by insurer, state and diagnosis, so confirm with your insurer and provider.
- For emergencies such as chest pain, fainting or trouble breathing, call 911. If you are in emotional crisis, call or text 988.
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Frequently asked questions
What is a polygenic risk score for heart disease?
A polygenic risk score for heart disease is an estimate that combines the small effects of many genetic variants to suggest how inherited factors may influence risk. It is not a diagnosis and does not predict whether you will develop a heart condition. A qualified clinician interprets it alongside your history, exam and bloodwork.
Is a polygenic risk score the same as genetic heart testing?
No, it is one type of genetic heart testing with a different purpose. Single-gene tests look for specific variants tied to inherited conditions, while a polygenic score looks at many variants together for broader risk. A cardiologist or genetic counselor can explain which, if either, may be relevant to you.
Can a polygenic risk score diagnose heart disease?
No. A score reflects inherited tendency only and cannot diagnose heart disease or say if or when a problem will occur. Diagnosis relies on a clinician's evaluation, which may include exams, imaging and bloodwork.
Does a low polygenic risk score mean I am safe?
No, a low score does not rule out risk. Other factors such as family history, blood pressure, cholesterol, lifestyle and single-gene variants still matter. Ask your cardiologist how to view the result in context.
Should I see a genetic counselor before a polygenic risk score?
Genetic counseling before and after testing is generally recommended. A counselor can explain what the test can and cannot show, discuss privacy and insurance questions, and help you understand results. Genetic counselor licensing varies by state.
Will insurance cover a polygenic risk score, and does GINA protect me?
Coverage varies by insurer, state and diagnosis, so confirm with your insurer and provider before testing. GINA protects against genetic discrimination in US health insurance and employment, but it does not cover life, disability or long-term-care insurance. Ask about those policies before you test.
Educational resource. CardioGenes shares general information and connects people with independent cardiologists. It is not medical advice, diagnosis or treatment. Talk with a licensed professional about your health.