What is bradycardia?

Bradycardia refers to a slower than normal heart rate, typically defined as a heart rate of fewer than 60 beats per minute in adults. This condition can be a result of various physiological or pathological factors, such as increased vagal tone, certain medications, or underlying medical conditions. In some cases, bradycardia may be a normal finding, particularly in well-trained athletes whose resting heart rates can be lower due to increased heart efficiency. However, in the context of clinical settings, bradycardia often raises concern if it leads to symptoms like dizziness, fatigue, or fainting, signaling that the heart may not be pumping enough blood to meet the body's needs. Recognizing bradycardia is essential for assessing cardiac function and determining if further evaluation or intervention is necessary.