What key signs indicate a heart attack in adults?

Chest pain, shortness of breath, and pain in the arms are classic symptoms that often signal a heart attack in adults. The chest pain can vary in intensity and may feel like pressure, squeezing, or fullness. It is usually persistent and can radiate to other areas, such as the arms, back, neck, jaw, or stomach. Shortness of breath might occur alongside the chest pain or independently. These signs are crucial because they directly relate to the heart's function and the body's response to the lack of sufficient blood flow, indicating a potential blockage or other serious conditions affecting the heart. Recognizing these signs can lead to prompt medical intervention, which is vital for improving outcomes during a heart attack.