Resting heart rate
Resting heart rate is the number of times your heart beats per minute when you are at rest. Learn why it’s an important sign of your heart health and how to check it.
Bradycardia is a slower than normal heart rate, which can lead to a range of symptoms such as feeling faint, tired or short of breath.
Tachycardia is a condition where the heart beats at a faster rate than normal (usually more than 100 beats per minute).
Heart arrhythmias are irregular heartbeats. The heart can beat too fast, too slow or irregularly — learn how to recognise the symptoms here.
Implantable cardioverter defibrillators
An ICD, sometimes called an ACID (automated implantable cardioverter defibrillator), may be needed if you have an abnormally fast or irregular heartbeat.
Heart murmurs are extra sounds made by the heart. Some heart murmurs are serious, some are not — here's what you need to know.
Wolff-Parkinson-White syndrome is a possible cause of tachychardia (occasional or frequent episodes of very fast heartbeats). Learn more here.
Has your doctor recommended you to have a pacemaker? Find out what it is, who needs it and things to consider before and after the surgery.
Long QT syndrome
Long QT syndrome (LQTS) is a disorder of the heart's electrical system that can cause fast, chaotic heartbeats, called arrhythmias.
If you become suddenly aware of your heartbeat, especially if it’s faster or harder, you could be having palpitations. Learn how to spot the signs.