Tachycardia
Tachycardia (if your heart beats very fast, 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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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.
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Resting heart rate
Resting heart rate is the number of times your heart beats per minute when you are at rest. Learn what's normal for heart health and how to check it.
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Chronic fatigue syndrome (Myalgic Encephalomyelitis)
Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a complicated condition characterised by ongoing, unexplained tiredness.
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Beta blockers
Beta blockers are medicines used to treat some heart and other conditions. Learn about the potential side effects, benefits and how they work.
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Calcium channel blockers (CCB)
Calcium channel blockers (CCB) can treat angina, high blood pressure and some heart rhythm problems. Learn about how they work and their side effects.
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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.
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Jellyfish stings
Jellyfish stings are common and mostly just painful. Read this page to find out when you may need to get emergency medical attention.
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High blood pressure and how to lower it
You can lower your blood pressure with lifestyle changes and medicines. Get tips on controlling your blood pressure if you have hypertension.
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