Diabetes and the Heart: Understanding the Connection
October 15, 2026 · 2 min read
Medically reviewed by the physicians of Gilead Heart & Vascular · Last reviewed: 2026-10-15
Diabetes significantly raises the risk of heart disease because elevated blood sugar damages blood vessels and accelerates plaque buildup over time, which is why cardiovascular screening matters for anyone managing diabetes.
Why Diabetes and Heart Disease Are So Closely Linked
Diabetes and heart disease share a close and well-documented relationship. Over time, elevated blood sugar can damage the blood vessels and nerves that control the heart, accelerating the buildup of plaque inside artery walls. This is a major reason adults with diabetes face a significantly higher risk of heart attack, stroke, and other cardiovascular problems than those without it.
This connection runs in both directions, too: conditions that raise cardiovascular risk, like obesity and high blood pressure, often overlap with the risk factors for type 2 diabetes. That overlap is exactly why managing your heart and managing your blood sugar shouldn't be treated as separate efforts.
Recognizing the Added Risk
Many people with diabetes don't experience the classic warning signs of heart trouble in the same way others do, partly because diabetes can affect nerve sensitivity, sometimes dulling symptoms like chest pain. This makes routine cardiovascular screening especially important for anyone managing diabetes, rather than waiting for a dramatic symptom to prompt a visit.
Our physicians look closely at blood pressure, cholesterol, and other markers in patients with diabetes, since these factors compound the risk that diabetes itself introduces.
A Coordinated Approach to Care
Protecting your heart when you have diabetes typically involves several coordinated pieces: blood sugar management, blood pressure control, cholesterol management, and lifestyle factors like diet and activity. Our team works alongside your primary care provider or endocrinologist to make sure your cardiovascular care fits into your overall diabetes management, rather than existing as a separate conversation.
Depending on your individual risk profile, this may include specific testing like an EKG, echocardiogram, or coronary calcium score to establish a clear baseline and catch any developing issues early.
A1C and Your Heart
Your A1C, a measure of average blood sugar over roughly three months, is one of the numbers your cardiologist may track alongside your traditional heart-health markers, not because we manage your diabetes directly, but because it's a meaningful piece of your overall cardiovascular risk picture. Bringing your most recent A1C to a cardiology visit can help make the conversation more complete.
Frequently Asked Questions
Why does diabetes raise heart disease risk?
Elevated blood sugar damages blood vessels and nerves over time and accelerates plaque buildup inside artery walls.
Do people with diabetes get the same heart symptoms as everyone else?
Not always. Diabetes can dull nerve sensitivity, sometimes masking classic symptoms like chest pain, which is why routine screening matters.
What testing might I need if I have diabetes?
Depending on your risk profile, this may include an EKG, echocardiogram, or coronary calcium score to establish a clear baseline.
Related Reading
Want to be seen soon and skip the wait at a place close to home? If you're managing diabetes, a cardiovascular check-in with Gilead Heart & Vascular can help you understand and reduce your added heart disease risk.
Have a question about your heart health?
Talk it through with your doctor at any Gilead Heart & Vascular location.