Tachycardia

Tachycardia is a condition where the heart beats faster than normal, usually over 100 beats per minute in adults. This rapid heartbeat can be caused by various factors, including stress, fever, heart issues, or certain medications. While some types of tachycardia are harmless, others can reduce the heart's efficiency and lead to symptoms like dizziness, shortness of breath, or fainting. It’s important to determine the cause through medical evaluation, as treatment options vary from lifestyle changes to medications or procedures to restore a normal heartbeat.