Which of the following is a common sign of a heart attack?

Chest pain or discomfort is a common sign of a heart attack because it often indicates that the heart muscle is not receiving enough oxygen, typically due to a blocked artery. This discomfort can manifest as a feeling of pressure, squeezing, fullness, or pain in the center or left side of the chest. It may also radiate to other areas such as the arms, back, neck, jaw, or stomach. Recognizing this symptom is crucial in identifying an impending heart attack, as prompt medical attention can significantly improve outcomes.

Other signs and symptoms of a heart attack may include shortness of breath, sweating, nausea, or lightheadedness, but chest pain or discomfort remains one of the hallmark indicators. This focus on chest-related symptoms is essential for immediate recognition and response in emergency situations.