What are some common signs of a heart attack?

Chest pain, shortness of breath, and nausea are recognized as classic signs of a heart attack. These symptoms indicate that the heart is not receiving enough oxygen-rich blood, which can result from a blockage in the coronary arteries. Chest pain may present as a feeling of pressure, squeezing, or fullness, while shortness of breath can occur even at rest or with minimal exertion. Nausea may accompany these symptoms due to the body's stress response during a heart attack. Recognizing these signs is crucial for prompt treatment and can significantly improve outcomes for an individual experiencing a heart attack.