What Does "High Risk" Actually Mean?

You open your Genomisaur report and see a score in the 90th percentile for some condition. Your first instinct might be to panic. Before you do, it's worth understanding what "high risk" means in the context of polygenic risk scores, and what it doesn't.

Relative Risk, Not Absolute Risk

A polygenic risk score tells you how your genetic predisposition compares to other people. Being in the 90th percentile for heart disease means your genetic loading for the condition is higher than 90% of the reference population. It does not mean you have a 90% chance of developing heart disease.

The difference between relative and absolute risk matters a lot. The lifetime absolute risk of many conditions is fairly low. The average lifetime risk of type 2 diabetes is roughly 10–15%. Even if your PRS doubles that, your absolute risk lands around 20–30% — which still leaves a 70–80% chance you won't develop it.

Genetics Is One Piece of the Puzzle

Your DNA matters, but it isn't the whole story. PRS captures the genetic component of risk, and most common conditions are shaped by a mix of factors:

• Lifestyle (diet, exercise, sleep, stress) can shift risk meaningfully even when genetic predisposition is high.
• Environment matters: where you live, what you're exposed to, and your access to healthcare.
• Family history adds information PRS doesn't capture. PRS aggregates common variants; family history can flag rare, family-specific mutations.
• Risk profiles change with age and sex for many conditions.

Why High Scores Are Useful

A high PRS isn't a problem so much as a heads-up. Knowing you have an elevated genetic predisposition gives you the chance to act before symptoms appear. That's the whole point of predictive genomics.

For cardiovascular disease, a high score might be reason to monitor cholesterol more closely, stay on top of weight, and discuss statin therapy with your doctor. For type 2 diabetes, it might push dietary changes you'd otherwise put off. For some cancers, it might justify earlier or more frequent screening.

The people who get the most out of PRS are the ones who learn their risk before disease develops, while prevention is still on the table.

What About Low Scores?

A low PRS doesn't mean you're immune. Your genetic predisposition is below average, but you can still develop the condition through other risk factors. Don't use a low score as a reason to skip recommended screenings or coast on healthy habits.

The Bottom Line

A high polygenic risk score means your genetics put you at greater-than-average predisposition for a condition. It's a signal worth paying attention to, especially in combination with lifestyle and family history. If any of your scores concern you, bring your Genomisaur report to your next doctor's appointment. It works well as a starting point for that conversation.