Which of the following is NOT a sign of a heart attack?

The option indicating difficulty swallowing is not a typical sign of a heart attack. Heart attacks commonly present with specific symptoms such as chest pain, which is often described as a feeling of pressure or tightness. Cold sweats are also a recognized symptom, as the body may react to the stress of a heart attack by increasing sweat production. Similarly, arm discomfort, particularly in the left arm, is a classic symptom associated with heart attacks.

In contrast, difficulty swallowing is more commonly associated with other medical conditions, such as gastrointestinal issues or throat problems, rather than indicating a cardiac event. Recognizing the usual symptoms of a heart attack is crucial for timely intervention and treatment, which can be life-saving.