Hello, I'm an expert in cardiology with a focus on heart rhythm disorders. Palpitations are sensations of an unusually strong, fast, or irregular heartbeat, and while they can be alarming, they are not typically a direct cause of a heart attack. Palpitations can occur for a variety of reasons, including stress, anxiety, caffeine, certain medications, or as a symptom of an underlying heart condition. However, most of the time, palpitations are harmless and are not associated with a higher risk of heart attack. In fact, they can be a normal response to certain situations. That being said, if you have frequent or severe palpitations, it's important to consult with a healthcare professional to rule out any underlying conditions that could increase your risk of a heart attack, such as coronary artery disease or an arrhythmia. read more >>

There are several possible causes of heart palpitations. ... These premature beats are almost always benign, meaning they aren't life-threatening or the sign of a heart attack in the making. Two other heart rhythm disturbances that can cause palpitations from above are atrial fibrillation and supraventricular tachycardia.read more >>