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Heart Diseases
Reviewed by Medicinsk Expert•Last updated: 2026-10-22•Blood Heart Circulation

Heart Diseases

Heart disease is the leading cause of death in the United States, encompassing various conditions that affect the heart's structure and function.

Overview

Heart disease is a general term for cardiovascular disease, which involves the heart and blood vessels. While some forms are congenital, others develop over a lifetime due to various factors.

Common Types

Coronary artery disease is the most prevalent type, caused by plaque buildup that restricts blood flow. This can lead to:

  • Angina: Chest pain from lack of blood flow.
  • Heart attacks: Death of heart muscle due to loss of blood flow.
  • Heart failure: The heart's inability to pump enough blood.
  • Arrhythmia: Irregular heart rate or rhythm.

Other types include conditions affecting heart valves or the heart muscle (cardiomyopathy).

Risk Factors

Risk factors are categorized into those that can be changed and those that cannot:

  • Non-modifiable: Age, sex, family history/genetics, and race/ethnicity.
  • Lifestyle habits: Diets high in saturated fats/salt, physical inactivity, alcohol consumption, smoking, and stress.
  • Medical conditions: High blood pressure, high cholesterol, diabetes, obesity, autoimmune/inflammatory diseases, chronic kidney disease, and metabolic syndrome.

Diagnosis and Treatment

Diagnosis involves a review of medical history and family health history, a physical exam, and various heart and blood tests. A cardiologist may be consulted for specialized care.

Treatment plans are tailored to the specific type and severity of the disease and may include:

  • Heart-healthy lifestyle changes.
  • Medicines.
  • Procedures or surgeries.
  • Cardiac rehabilitation.

Frequently Asked Questions

The most impactful lifestyle changes include adopting a balanced diet rich in fruits, vegetables, whole grains, and lean proteins, while limiting processed foods, unhealthy fats, and excessive sodium. Regular physical activity, aiming for at least 30 minutes of moderate-intensity exercise most days of the week, is crucial. Quitting smoking, maintaining a healthy weight, managing stress effectively, and limiting alcohol consumption are also essential steps to significantly reduce your risk and improve heart health.
Cardiac rehabilitation is a medically supervised program designed to improve the health and well-being of people who have heart problems. It typically involves three main components: exercise counseling and training to help you become more active, education for heart-healthy living (diet, stress management, medication adherence), and counseling to reduce stress and improve mental health. It's highly beneficial for individuals recovering from a heart attack, heart surgery, heart failure, or other heart conditions, helping them regain strength, reduce future heart risks, and improve their quality of life.
If heart disease runs in your family, it's even more important to be proactive. Discuss your family history with your doctor, as this helps them assess your personal risk. You should get regular screenings for blood pressure, cholesterol, and blood sugar starting at an earlier age than typically recommended. Adopting a heart-healthy lifestyle is paramount, and your doctor may recommend additional tests or more frequent monitoring based on your specific risk factors and family history.
heart attack occurs when blood flow to a part of the heart muscle is suddenly blocked, causing muscle damage or death. Heart failure is a chronic condition where the heart can't pump enough blood to meet the body's needs, often developing over time. An arrhythmia is an irregular heartbeat, meaning the heart beats too fast, too slow, or with an irregular rhythm. Knowing the differences is vital because each requires distinct immediate and long-term medical management, and symptoms can overlap, making prompt and accurate diagnosis critical for effective treatment and preventing further complications.
Source: MedlinePlus, National Library of Medicine

MedlinePlus brings together authoritative health information from the National Library of Medicine (NLM), the National Institutes of Health (NIH), and other government agencies and health-related organizations.

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