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.

Read more

Brugada syndrome

Brugada syndrome can disrupt your heart rhythm, causing palpitations, fainting or in serious cases, cardiac arrest. Read about symptoms and treatment.

Read more

Hyperthyroidism

Hyperthyroidism (or thyrotoxicosis) occurs when the thyroid gland is overactive and produces too much thyroid hormone.

Read more

Cardiomyopathy

Cardiomyopathy is a condition that affects your heart muscle. Find out about the different types of cardiomyopathy, symptoms and treatments.

Read more

External cardioversion

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.

Read more

Vitamin B deficiency

Vitamin B deficiency can happen when you don’t get enough of the right nutrients. Learn about the symptoms of vitamin B deficiency.

Read more

Calcium channel blockers (CCB)

Find out what the most common types of calcium channel blockers are used for, how they work and any side effects associated with taking them.

Read more

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

Read more

Potassium deficiency

Potassium is a mineral that helps nerves and muscles function properly. Read more about potassium deficiency, symptoms, diagnosis and causes.

Read more

Pericarditis

Pericarditis is the inflammation of the thin membrane around your heart. Read more about pericarditis symptoms, treatments and causes.

Read more

Pulmonary hypertension

Find out all about pulmonary hypertension, a condition caused by changes to the arteries in your lungs that can damage your heart.

Read more

Thyroid gland

Your thyroid gland sits in the front of your neck and helps control your metabolism. Read about the different thyroid hormones and thyroid problems.

Read more

Thyroid problems

If your thyroid becomes overactive (hyperthyroidism) or underactive (hypothyroidism), you may experience a range of health problems — learn more here.

Read more

Potassium and your health

Potassium is a mineral that your body needs so nerves and muscles function well. Read more on the signs of having too much or too little potassium.

Read more

Ciguatera poisoning

Ciguatera poisoning only comes from certain fish from warm waters and can cause severe complications. Read on for management and prevention advice.

Read more

Generalised anxiety disorder (GAD)

Generalised anxiety disorder (GAD) is a type of anxiety disorder characterised by persistent worry that impacts on day-to-day life.

Read more

Inserting a pacemaker

An abnormal heart rhythm can cause cardiac arrest and even death. Having a pacemaker inserted may save your life by preventing you from having a cardiac arrest.

Read more

Vaping

Vaping can cause harm to your health. There are laws in place about buying vapes and where you can use them. Learn more.

Read more

Anaemia

Anaemia is a lack of red blood cells, which carry oxygen from the lungs around the body. It's important treat the cause of the anaemia.

Read more

Fainting

Fainting is a temporary loss of consciousness when the blood flow to the brain is reduced. See your doctor if you faint, especially the first time.

Read more

Collapsing

Collapsing has a range of causes, often occurring because of fainting. Find out about the causes of collapse and what to do if someone collapses.

Read more

Adrenaline

Adrenaline (epinephrine) is a natural stress hormone. It is also a medicine used in an emergency for severe allergic reactions (anaphylaxis).

Read more

Signs of mental health issues

Your mental health includes your emotional, psychological, and social well-being. Learn to recognise signs of a mental health issue.

Read more

Blackouts

A blackout is a temporary loss of consciousness. It can be caused by fainting, or a more serious issue. Learn more about blackout treatments here.

Read more

Postural orthostatic tachycardia syndrome (POTS)

Postural orthostatic tachycardia syndrome (POTS) causes a fast heartbeat and other symptoms when you stand up. Learn how to manage POTS.

Read more

Cardiac arrest

Cardiac arrest is when the heart stops beating, usually due to an electrical problem with the heart. Performing CPR and defibrillation in time can be lifesaving.

Read more

Rheumatic heart disease

Rheumatic heart disease is when your heart valves are damaged by rheumatic fever. Learn more about how this can be prevented and treated.

Read more

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.

Read more

Chest pain

Chest pain can be a symptom of a heart attack. Find out the common causes of chest pain, when to be concerned and what to do if you have chest pain.

Read more

Heart murmur

A heart murmur is an irregular sound heard when listening to the heart. Some heart murmurs are a sign of a heart condition, but others are not.

Read more