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

Pale skin is a common symptom of a heart attack due to the body diverting blood away from the skin to ensure that vital organs receive enough oxygen-rich blood. This response can lead to a decrease in circulation to the extremities and skin, resulting in a pale appearance. During a heart attack, the heart muscle is not receiving adequate blood supply, which can trigger a range of reactions in the body, including changes in skin coloration.

In contrast, sore throat, stomach cramps, and increased thirst are not typically associated with heart attacks. While the body might experience various symptoms during a heart attack, pale skin is a direct indicator of the body's response to decreased heart function and blood flow. Understanding these physiological reactions is crucial for recognizing and responding to a heart attack promptly.