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What are some causes of cardiac arrhythmias?

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Cardiac arrhythmias can result from different factors including heart attack, scarring of heart tissues, diabetes, high blood pressure, drug abuse and coronary artery disease, according to Mayo Clinic. A person could suffer from cardiac arrhythmias due to electrolyte imbalances in the blood and the healing process from surgery, reports WebMD.

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Full Answer

Drinking too much caffeine or alcohol can change the heart rate, says Mayo Clinic. Smoking and drug abuse can cause the heart rate to change as cigarettes and drugs stimulate the brain. Using some types of medication such as amphetamines can increase the heart rate. Beta blockers have an effect of reducing blood pressure, triggering cardiac arrhythmias, according to Healthline.

Hypertensive heart disease is a combination of different conditions that result from an overstressed heart, explains Healthline. Coronary artery disease and heart muscle and heart failure are among those that cause cardiac arrhythmias. These conditions are dangerous and can lead to high blood pressure or even death.

Cardiac arrhythmias can also result from hyperthyroidism or hypothyroidism, notes Mayo Clinic. When the thyroid gland produces iodine in excess or insufficient amounts, it affects the rate of metabolism, thereby altering the heart rate. People suffering from hyperthyroidism or hypothyroidism may have elevated blood pressure, rapid heart rate, excessive sweating and restlessness.

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