What it is
Most heart disease isn't caused by one gene. Many people have a family history or concerns about their heart, yet no single disease-causing variant is ever found. Instead, many small genetic differences, each with a tiny effect, may combine with lifestyle, environment and age to shape risk.
A polygenic risk score is an attempt to add up those small differences into one number or category. It is a risk estimate, not a diagnosis. It can't say whether you will or won't develop heart disease, and it is not the same as single-gene testing for inherited conditions. Availability, quality and regulatory status of these tests vary, so it's wise to ask a provider about them.
Preventive cardiology looks at risk more broadly. Along with genetic information, it can include family and personal history, blood pressure, bloodwork such as advanced lipid testing, and imaging such as a coronary artery calcium score. A qualified clinician decides which, if any, of these are appropriate for you.
How it’s traditionally been approached
Traditionally, heart disease risk has been estimated from familiar factors such as age, sex, blood pressure, cholesterol, smoking status, diabetes and family history. These are often combined in risk calculators that a clinician reviews with the patient.
Imaging and bloodwork have been used to add detail. A coronary artery calcium score uses a CT scan to look for calcium in the heart's arteries. Advanced lipid testing looks beyond standard cholesterol numbers. Each has its own strengths and limits, and not everyone needs them.
Genetic testing has traditionally focused on single-gene conditions, especially when several relatives are affected or someone is diagnosed at a young age. Polygenic scores are a newer addition, and how much they should factor into everyday care is still discussed among professionals. Insurance coverage for these tests varies by insurer, state and diagnosis.
How the right cardiologist may help
The right cardiologist may help you put all of this in context. A first visit often involves talking through your personal and family history, current health, medicines and concerns, followed by a physical exam. Your cardiologist may then discuss whether any testing makes sense for you, or whether it doesn't.
If genetic testing is on the table, a cardiologist or a genetic counselor may help you think through what results could and couldn't tell you before you test. That includes the fact that a negative result doesn't rule out risk, and that a variant of uncertain significance is not a diagnosis. Counseling before and after testing is generally recommended, and genetic counselor licensing varies by state.
Questions you might bring: Which of these tests, if any, fit my situation? What would the results change? Is this test regulated, and how is it validated? How are results shared with family? Will my insurer cover it? Also ask about GINA, which protects against genetic discrimination in US health insurance and employment but does not cover life, disability or long-term-care insurance, so ask about those before testing.
The whole-person view
Body, mind and stress affect each other. Worrying about a family history or a test result can raise tension, disturb sleep and shape daily choices, and physical health in turn influences mood and energy. Looking at risk as a whole-person picture can help it feel less overwhelming.
Some people find body-based support, such as the approaches offered through Somatic Experiences, helpful for managing the stress of health uncertainty. Others prefer talk therapy, which you can explore through Therapists.plus. Neither replaces medical care, and every approach has value 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; a licensed clinician should guide any testing or care decisions.
- A genetic or polygenic test shows risk, not a diagnosis, and no test or procedure can promise to prevent a heart attack or sudden cardiac death.
- Confirm coverage with your insurer and provider, and ask about life, disability and long-term-care insurance before genetic testing, since GINA doesn't cover them.
- For emergencies such as chest pain, fainting or trouble breathing, call 911; in an 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 many small genetic differences to describe how a person's inherited risk compares with others. It is not a diagnosis and can't predict whether you will develop heart disease. A qualified clinician should interpret it alongside your history, exam and other tests.
Is a heart disease risk genetic test the same as a single-gene test?
No, they look at different things. Single-gene tests search for a specific disease-causing variant tied to an inherited condition, while polygenic scores add up many small variations. Which, if either, is appropriate is something a cardiologist or genetic counselor can help you decide.
What is a coronary artery calcium score?
A coronary artery calcium score is a result from a CT scan that looks for calcium in the arteries of the heart. Clinicians may use it as one piece of a broader risk picture. Whether it makes sense for you is a decision to make with your provider.
What is advanced lipid testing?
Advanced lipid testing is bloodwork that looks at cholesterol-related particles in more detail than a standard panel. Some clinicians use it to add context when standard results leave questions. Ask your provider whether it fits your situation and whether insurance covers it.
Does a negative genetic result mean I'm safe?
No, a negative result doesn't rule out risk. Many factors beyond the genes tested can affect heart health, and current tests don't capture everything. Your cardiologist can help you understand what a result does and doesn't mean.
Should I see a genetic counselor before heart disease risk testing?
Yes, genetic counseling before and after testing is generally recommended. A counselor can explain what results may and may not show, discuss privacy and insurance questions such as GINA's limits, and talk through family implications. Licensing for genetic counselors varies by state.
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.