Heart Block is a condition where the electrical signals that control the heartbeat are delayed or blocked as they travel through the heart. This can lead to a slower heart rate or irregular heartbeats, which may cause symptoms like fatigue, dizziness, or fainting. There are different types of Heart Block, including first-degree, second-degree, and third-degree blocks, each varying in severity. Diagnosis typically involves an electrocardiogram (ECG) to monitor the heart's electrical activity. Treatment options may include medication or the implantation of a pacemaker to help regulate the heartbeat.