Coronary Heart Disease
What is Coronary heart disease?
Coronary heart disease is a condition where the arteries that supply blood to your heart become narrow or blocked. This happens when a waxy substance called plaque builds up inside the artery walls. Over time, this buildup restricts blood flow to the heart muscle.
Your heart needs oxygen-rich blood to work properly. When plaque narrows the coronary arteries, your heart may not get enough blood during physical activity or stress. This can cause chest pain or discomfort called angina. If a plaque ruptures completely and blocks an artery, it can lead to a heart attack.
Coronary heart disease develops slowly over many years. It often starts in childhood or early adulthood but symptoms usually appear later in life. The good news is that many risk factors are within your control through lifestyle choices and early detection.
Symptoms
- Chest pain or pressure that may spread to the arms, neck, jaw, or back
- Shortness of breath during activity or at rest
- Fatigue or weakness, especially during physical exertion
- Pain in the neck, jaw, throat, upper abdomen, or back
- Nausea or indigestion-like discomfort
- Sweating without clear cause
- Dizziness or lightheadedness
- Rapid or irregular heartbeat
Many people with early coronary heart disease have no symptoms at all. This is why the condition is often called a silent killer. Some individuals only discover they have the disease after experiencing a heart attack or during routine screening tests.
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Causes and risk factors
Coronary heart disease happens when damage to the inner layer of coronary arteries allows plaque to build up. High cholesterol, high blood pressure, and smoking damage artery walls. Inflammation plays a key role in plaque formation and progression. Insulin resistance and high blood sugar also contribute to arterial damage and plaque buildup.
Risk factors include age over 45 for men and over 55 for women, family history of heart disease, smoking, high blood pressure, high cholesterol, diabetes, obesity, physical inactivity, chronic stress, and poor diet. Certain biomarkers like low adiponectin levels may signal increased risk. Adiponectin is a protein that protects against inflammation and plaque formation in arteries.
How it's diagnosed
Doctors diagnose coronary heart disease through a combination of medical history, physical exam, and specialized tests. An electrocardiogram measures your heart's electrical activity. Stress tests show how your heart performs during exercise. Imaging tests like CT scans or angiograms can reveal blockages in your arteries.
Blood tests help identify risk factors and markers associated with heart disease. These may include cholesterol panels, inflammatory markers, blood sugar tests, and specialized biomarkers like adiponectin. While Rite Aid offers blood testing for many health markers, coronary heart disease diagnosis often requires specialized cardiac testing. Talk to a doctor about which tests are right for your situation and risk level.
Treatment options
- Quit smoking immediately to reduce artery damage and improve circulation
- Eat a heart-healthy diet rich in vegetables, fruits, whole grains, and healthy fats
- Exercise for at least 150 minutes per week with activities you enjoy
- Maintain a healthy weight to reduce strain on your heart
- Manage stress through meditation, yoga, or other relaxation techniques
- Limit alcohol to no more than 1 drink per day for women or 2 for men
- Take prescribed medications such as statins, beta-blockers, or aspirin as directed
- Control blood pressure and blood sugar through lifestyle changes and medication
- Consider cardiac rehabilitation programs for structured support and monitoring
- In severe cases, procedures like angioplasty or bypass surgery may be needed
Frequently asked questions
Coronary heart disease is the ongoing condition where plaque narrows your coronary arteries over time. A heart attack happens when a plaque ruptures and completely blocks blood flow to part of your heart muscle. Think of coronary heart disease as the underlying problem and a heart attack as a sudden, acute event that can result from it.
While you cannot completely erase plaque that has built up, you can slow or even partially reverse the disease. Aggressive lifestyle changes combined with medication can reduce plaque size and stabilize vulnerable plaques. Studies show that plant-based diets, regular exercise, stress management, and cholesterol-lowering medications can improve artery health. Early intervention offers the best chance for significant improvement.
Most people describe it as pressure, tightness, squeezing, or heaviness in the chest. It may feel like someone is sitting on your chest or like indigestion. The discomfort often spreads to the left arm, neck, jaw, or back. It typically occurs during physical activity or emotional stress and improves with rest.
Risk increases with age, especially after 45 for men and 55 for women. However, the disease process often begins decades earlier. If you have risk factors like family history, high cholesterol, diabetes, or smoking, screening should start earlier. Talk to your doctor about when to begin heart health monitoring based on your individual risk profile.
Focus on vegetables, fruits, whole grains, legumes, nuts, and fatty fish rich in omega-3s. Olive oil, avocados, and other sources of healthy fats support heart health. Fiber-rich foods help lower cholesterol and stabilize blood sugar. Limit processed foods, refined sugars, trans fats, and excessive sodium, which all contribute to artery damage and inflammation.
Genetics play a role, but lifestyle factors are often more important. Having a parent or sibling with early heart disease increases your risk by 2 to 3 times. However, many people with family history never develop the disease thanks to healthy habits. Similarly, people without family history can still develop coronary heart disease through poor lifestyle choices.
Most adults should have cholesterol and blood pressure checked every 4 to 6 years starting at age 20. If you have risk factors like diabetes, obesity, or family history, annual screening is recommended. Your doctor may also order specialized tests like calcium scoring or inflammatory markers. Regular monitoring allows early detection and intervention before symptoms appear.
Yes, chronic stress contributes to heart disease through multiple pathways. Stress hormones like cortisol raise blood pressure and blood sugar. Stress also promotes inflammation and unhealthy behaviors like overeating or smoking. People under constant stress are more likely to develop risk factors that damage arteries over time.
Statins lower cholesterol and stabilize plaques in your arteries. Aspirin reduces the risk of blood clots forming on plaques. Beta-blockers slow your heart rate and reduce blood pressure. ACE inhibitors or ARBs also lower blood pressure and protect your heart. Your doctor will choose medications based on your specific symptoms, risk factors, and test results.