Final answer:
A heart attack is a sudden blockage in the coronary arteries, causing a lack of blood supply to the heart muscle. Heart failure is the heart's inability to pump enough blood to meet the body's needs.
Step-by-step explanation:
A heart attack and heart failure are two different conditions related to the heart, with distinct characteristics. A heart attack, also known as myocardial infarction, occurs when there is a sudden blockage in one or more of the coronary arteries, leading to a lack of blood supply and oxygen to the heart muscle. On the other hand, heart failure refers to the heart's inability to pump enough blood to meet the body's needs, often due to weakened or damaged heart muscles.
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