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 and the causes of heart palpitations.
This condition can disrupt the rhythm of your heart. It can cause palpitations, fainting or, in serious cases, cardiac arrest.
People with claustrophobia feel anxious and panic in an enclosed space. The physical and mental symptoms can be overwhelming and can include heart palpitations, dizziness or a fear of losing control.
Hyperthyroidism (sometimes called thyrotoxicosis) occurs when the thyroid gland is overactive. Learn more about hyperthyroidism, including the common signs and symptoms, and treatment options.
Heart arrhythmias are irregular heartbeats. The heart can beat too fast, too slow or irregularly — learn how to recognise the symptoms here.
An external cardioversion is a procedure to treat an abnormal heart rhythm. It involves connecting you to a defibrillator machine that gives a controlled electric shock to make your heart beat normally again.
If your thyroid becomes overactive (hyperthyroidism) or underactive (hypothyroidism), you may experience a range of health problems. Learn more here.
Heart murmurs are extra sounds made by the heart. Some heart murmurs are serious, some are not — here's what you need to know.
Cardiomyopathy is a heart condition caused by a damaged heart muscle. Discover what's behind cardiomyopathy, and how to manage it.
The thyroid is a soft bow-shaped gland which sits in the front of the neck, just below the Adam’s apple. Learn more about what they do and medical conditions related to them.