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
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
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
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
Rabies
Rabies in humans is caused by a bite or scratch from an infected animal. Learn what to do if you are bitten by an animal that may have rabies.
Read more
Jellyfish stings
Jellyfish stings are common and mostly just painful. If serious, you may need emergency medical attention. Read this page on jellyfish sting treatment.
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
Chronic fatigue syndrome (Myalgic Encephalomyelitis)
Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a complicated condition characterised by ongoing, unexplained tiredness.
Read more
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.
Read more
Ketamine
Ketamine is a drug used by doctors and vets. It can also be used illegally to get high. Learn more about ketamine and the dangers of long-term abuse.
Read more
