Coronary Heart Disease

What is Coronary Heart Disease?

Coronary heart disease happens when the arteries that supply blood to your heart become narrow or blocked. These arteries, called coronary arteries, deliver oxygen-rich blood to your heart muscle. When cholesterol, fat, and other substances build up inside artery walls, they form plaque that restricts blood flow.

This plaque buildup is called atherosclerosis. Over time, reduced blood flow means your heart does not get enough oxygen to work properly. This can cause chest pain, shortness of breath, or even a heart attack. Coronary heart disease develops slowly over many years, often without symptoms in the early stages.

The good news is that coronary heart disease can often be prevented or managed through lifestyle changes and early detection. Understanding your risk factors and getting tested can help you protect your heart before serious problems develop. Root-cause medicine focuses on addressing the underlying factors that damage your arteries, not just treating symptoms after they appear.

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Symptoms

Chest pain or discomfort, especially during physical activity or stress
Shortness of breath during routine activities or at rest
Pain or discomfort in the arms, shoulders, neck, jaw, or back
Fatigue or unusual tiredness, especially in women
Nausea, indigestion, or stomach pain
Dizziness or lightheadedness
Rapid or irregular heartbeat
Swelling in the feet, ankles, or legs

Many people have no symptoms in the early stages of coronary heart disease. The first sign can sometimes be a heart attack. This is why proactive testing is so important for catching problems before they become serious.

Causes and risk factors

Coronary heart disease develops when damage to the inner lining of your arteries allows cholesterol and other substances to stick to the artery walls. Inflammation plays a key role in this process. High levels of certain cholesterol particles, particularly apolipoprotein B, can increase plaque buildup. High fibrinogen levels can promote blood clots and worsen plaque formation. Oxidized LDL cholesterol is especially harmful because it triggers inflammation and accelerates artery damage.

Major risk factors include high cholesterol, high blood pressure, diabetes, smoking, obesity, poor diet, lack of exercise, chronic stress, and family history. Age also matters, with risk increasing after 45 for men and 55 for women. Inflammation markers and clotting factors like Lp-PLA2 activity and fibrinogen help predict who is at higher risk. Low levels of protective factors like apolipoprotein A1 and vitamin K can also contribute to heart disease risk.

How it's diagnosed

Coronary heart disease is diagnosed using a combination of medical history, physical exam, and testing. Blood tests are essential for understanding your risk and catching problems early. Advanced heart health biomarkers can reveal plaque buildup risk, inflammation levels, and cholesterol particle patterns that standard tests might miss. These include apolipoprotein A1 and B levels, oxidized LDL, fibrinogen activity and antigen, LDL particle pattern and peak size, Lp-PLA2 activity, and vitamin K status.

Rite Aid offers advanced cardiovascular testing that measures these important biomarkers. Getting tested twice a year helps you track changes and adjust your lifestyle or treatment as needed. Your doctor may also order additional tests like an electrocardiogram, stress test, echocardiogram, or coronary angiography to see how well your heart is working and check for blockages.

Treatment options

Eat a heart-healthy diet rich in vegetables, fruits, whole grains, fish, nuts, and healthy fats
Reduce saturated fat, trans fat, added sugars, and processed foods
Exercise regularly, aiming for at least 150 minutes of moderate activity per week
Maintain a healthy weight and lose excess pounds if needed
Quit smoking and avoid secondhand smoke
Manage stress through meditation, yoga, deep breathing, or other relaxation techniques
Control blood pressure and blood sugar if you have hypertension or diabetes
Take prescribed medications such as statins, blood pressure drugs, or antiplatelet agents
Consider supplements like omega-3 fatty acids or vitamin K under medical guidance
Work with your doctor to address inflammation and other root causes
In severe cases, procedures like angioplasty, stenting, or bypass surgery may be needed

Frequently asked questions

Coronary heart disease is the underlying condition where arteries become narrowed or blocked over time. A heart attack happens when blood flow to part of the heart is suddenly cut off, usually because a plaque ruptures and forms a clot. Coronary heart disease is the buildup process, while a heart attack is the acute event that can result from that buildup.

While existing plaque cannot be completely removed, studies show that aggressive lifestyle changes and treatment can stabilize plaque, reduce inflammation, and even slightly shrink blockages in some cases. The key is catching the disease early and addressing root causes like poor diet, inflammation, and high cholesterol. Many people can prevent the disease from getting worse and reduce their risk of heart attack through proactive changes.

Advanced cardiovascular biomarkers provide deeper insight than standard cholesterol tests. Important markers include apolipoprotein B, which shows how many cholesterol particles you have, and apolipoprotein A1, which reflects protective HDL function. Tests like oxidized LDL, fibrinogen, Lp-PLA2 activity, LDL particle pattern, and vitamin K also help assess inflammation, clotting risk, and plaque formation. These markers can identify risk years before symptoms appear.

If you have risk factors like high cholesterol, high blood pressure, diabetes, obesity, or family history, testing every 6 months is ideal. Regular testing helps you track whether lifestyle changes or medications are working. It also catches small changes before they become big problems. Testing twice a year gives you and your doctor the data you need to adjust your prevention plan.

Focus on whole, unprocessed foods like leafy greens, colorful vegetables, berries, fatty fish rich in omega-3s, nuts, seeds, olive oil, and whole grains. Foods high in fiber help remove cholesterol from your body. Anti-inflammatory foods like wild salmon, walnuts, and turmeric can protect your arteries. Limit red meat, processed meats, fried foods, refined carbohydrates, and foods with added sugars or trans fats.

Family history does increase your risk, especially if a parent or sibling had heart disease before age 55 for men or 65 for women. Genetics can affect how your body processes cholesterol and responds to inflammation. However, lifestyle factors still play a huge role. Even with a family history, healthy eating, regular exercise, not smoking, and stress management can significantly reduce your risk.

Inflammation damages the inner lining of your arteries, making it easier for cholesterol and other substances to stick and form plaque. Chronic inflammation also makes plaques more likely to rupture and cause a heart attack. Markers like Lp-PLA2 activity and oxidized LDL indicate inflammatory processes in your arteries. Reducing inflammation through diet, exercise, stress management, and adequate sleep is essential for prevention.

Chronic stress contributes to coronary heart disease in several ways. It raises blood pressure, increases inflammation, and triggers the release of stress hormones that can damage arteries over time. Stress also often leads to unhealthy behaviors like poor eating, smoking, drinking, and lack of exercise. Managing stress through relaxation techniques, regular physical activity, good sleep, and social connection is an important part of heart disease prevention.

LDL particle pattern refers to the size and density of your LDL cholesterol particles. Small, dense LDL particles are more dangerous because they can penetrate artery walls more easily and cause more damage. Pattern B, which has more small particles, indicates higher heart disease risk than Pattern A, which has larger, fluffier particles. This test provides insight beyond standard LDL cholesterol numbers and helps guide treatment decisions.

See a doctor immediately if you have chest pain, shortness of breath, or other heart attack warning signs. Schedule an appointment if you have risk factors like high blood pressure, high cholesterol, diabetes, obesity, smoking, or family history. Regular checkups and proactive blood testing can catch problems early, often before you have any symptoms. Early detection and prevention are always easier than treating advanced disease.