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Definition
By Mayo Clinic staffYour coronary arteries are the major blood vessels that supply your heart with blood, oxygen and nutrients. When these arteries become damaged or diseased — usually due to a buildup of fatty deposits called plaques — it's known as coronary artery disease.
These deposits can slowly narrow your coronary arteries, causing your heart to receive less blood. Eventually, diminished blood flow may cause chest pain (angina), shortness of breath or other symptoms. A complete blockage, caused either by accumulated plaques or a ruptured plaque, can cause a heart attack.
Because coronary artery disease often develops over decades, it can go virtually unnoticed until it produces a heart attack. But there's plenty you can do to prevent and treat coronary artery disease. Start by committing to a healthy lifestyle.
