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.
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Bradycardia
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.
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Tachycardia
Tachycardia (if your heart beats faster than usual, more than 100 beats per minute) can be a normal response to exercise or stress or a sign of disease
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Wolff-Parkinson-White syndrome
Wolff-Parkinson-White syndrome (WPW) can cause episodes of fast heartbeat, or tachycardia. Learn more here about the symptoms and treatments for WPW.
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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.
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Long QT syndrome
Long QT syndrome (LQTS) is a disorder of the heart's electrical system that can cause fast, chaotic heartbeats, called arrhythmias.
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Heart murmur
Heart murmurs are sounds that can be heard when listening to the heart. Some heart murmurs are a sign of a heart condition, but others are not. Here's what you need to know.
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Pacemaker
A pacemaker is a medical device put in the chest to correct heart problems, such as irregular heartbeat or heart muscle problems.
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Heart palpitations
When you have palpitations you are suddenly aware of your heartbeat. Read about the causes, related symptoms and what to do if you have palpitations.
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Thyroid problems
If your thyroid becomes overactive (hyperthyroidism) or underactive (hypothyroidism), you may experience a range of health problems — learn more here.
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