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  1. How Smoking Affects the Heart and Blood Vessels - NHLBI, NIH

    Mar 24, 2022 · Smoking is a major risk factor for heart disease. The chemicals you inhale when you smoke cause damage to your heart and blood vessels that makes you more likely to …

  2. How the Heart Works How Blood Flows through the Heart

    Jun 25, 2025 · Arteries and veins link your heart to the rest of the circulatory system. Veins bring blood to your heart. Arteries take blood away from your heart. Your heart valves help control …

  3. What Is Coronary Heart Disease? - NHLBI, NIH

    Dec 27, 2024 · Coronary heart disease is a type of heart disease that occurs when the arteries of the heart cannot deliver enough oxygen -rich blood to the heart muscle due to narrowing from …

  4. Heart Attack - Causes and Risk Factors | NHLBI, NIH

    Mar 24, 2022 · What causes a heart attack? The most common cause of a heart attack is coronary artery disease, which is the most common type of heart disease. This is when your …

  5. Physical Activity and Your Heart - Benefits | NHLBI, NIH

    Mar 24, 2022 · Physical activity reduces coronary heart disease risk factors When done regularly, moderate- and vigorous-intensity aerobic activity can lower your risk for coronary heart …

  6. Atherosclerosis Treatment - NHLBI, NIH

    Oct 28, 2024 · Angioplasty opens narrowed or blocked arteries. Healthcare providers may use angioplasty to treat peripheral artery disease affecting the legs, to treat coronary heart disease …

  7. Coronary Artery Bypass Grafting What to Expect During Surgery

    Mar 24, 2022 · A heart-lung bypass machine is sometimes used. Hybrid bypass surgery uses robotic bypass for one of the main arteries and a stent for other blocked arteries. The stent is a …

  8. Coronary Heart Disease - Causes and Prevention | NHLBI, NIH

    Dec 27, 2024 · Coronary heart disease may have more than one cause, including plaque buildup or problems that affect how the heart's blood vessels work. Taking steps to keep your heart …

  9. Coronary Heart Disease - Treatment | NHLBI, NIH

    Dec 27, 2024 · Treatment for coronary heart disease depends on how serious your symptoms are and any other health conditions you have. Symptoms are likely to worsen as plaque builds up …

  10. Smoking and Your Heart - Smoking Risks | NHLBI, NIH

    Mar 24, 2022 · Smoking is a major risk factor for coronary heart disease, a condition that happens when that plaque builds up inside the coronary arteries. These arteries supply your heart …