Dec 15, 2023 · In tachycardia, an irregular electrical signal, called an impulse, starts in the upper or lower chambers of the heart. This causes the heart to beat faster.

Apr 25, 2026 · Tachycardia is a common, treatable condition that causes rapid heartbeat. Learn what causes your heart to beat too fast, and how doctors diagnose and treat it.

Jan 31, 2025 · Tachycardia is an abnormal heart rhythm with a fast heart rate of more than 100 beats per minute at rest. It can start in the upper or lower chambers of your heart and can range from mild …

Heart rates above the resting rate may be normal (such as with exercise) or abnormal (such as with electrical problems within the heart). Tachycardia can lead to fainting. [2]

Sep 24, 2024 · Tachycardia is when the heart beats too fast when at rest — at a rate of more than 100 beats per minute. This can depend on age, health status and physical condition.

Jan 7, 2026 · What is arrhythmia? An arrhythmia is an abnormal heartbeat. These include tachycardia, an elevated heart rate; bradycardia, when the heart beats too slowly; or extra or early heartbeats.

Jun 3, 2026 · Tachycardia is considered normal when it occurs during exercise or in response to certain emotions. In some cases, however, a fast heart rate may indicated a serious underlying health …

A normal, healthy adult typically has a resting heart rate between 60 and 100 beats per minute. Tachycardia is defined as a heart rate over 100 beats per minute. Tachycardia that occurs as a …

Nov 26, 2025 · Tachycardia - an easy to understand guide covering causes, diagnosis, symptoms, treatment and prevention plus additional in depth medical information.

Dec 6, 2023 · Tachycardia is a heart rate of more than 100 beats per minute. The heart normally beats at a rate of 60 to 100 times per minute, and the pulse (felt at the wrist, neck or elsewhere) matches …