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What are the causes of tachycardia?
Physical activity Caffeine, nicotine, and other stimulants Stress or anxiety
Questioner：Sophia Robinson 2018-04-06 10:02:40
The most authoritative answer in 2024
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Emma Harris——Studied at Yale University, Lives in New Haven, CT
As a medical professional with expertise in cardiology, I can provide you with a comprehensive overview of the causes of tachycardia. Tachycardia refers to a heart rate that is faster than normal, typically defined as a rate above 100 beats per minute for adults. There are several potential causes for this condition:
1. Physical activity: Increased heart rate is a normal response to exercise.
2. Caffeine, nicotine, and other stimulants: These substances can stimulate the heart and increase heart rate.
3. Stress or anxiety: Emotional stress can trigger the release of adrenaline, which can speed up the heart rate.
4. Fever: An elevated body temperature can increase the heart rate.
5. Dehydration or overheating: Both can lead to an increased heart rate as the body tries to cool down or compensate for fluid loss.
6. Certain medications: Some drugs, including decongestants and certain asthma medications, can cause tachycardia.
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Underlying heart conditions: Conditions like heart disease, heart valve problems, or previous heart attack can lead to tachycardia.
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Electrolyte imbalances: Abnormal levels of sodium, potassium, or calcium can affect heart rhythm.
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Anemia: A lack of red blood cells can force the heart to work harder to circulate oxygen.
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Thyroid problems: An overactive thyroid (hyperthyroidism) can speed up the heart rate.
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1. Infections: Certain infections, like pneumonia or heart infections, can increase heart rate.
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2. Pregnancy: The heart rate may increase during pregnancy due to the body's increased metabolic demands.
It's important to note that while some causes of tachycardia are harmless and temporary, others can be serious and require medical attention. If you experience persistent or unexplained tachycardia, it's crucial to consult with a healthcare professional for a proper evaluation and treatment.
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Gabriel Ross——Works at Shopify, Lives in Ottawa, Canada
These include:Damage to heart tissues from heart disease.Abnormal electrical pathways in the heart present at birth (congenital heart conditions, including long QT syndrome)Disease or congenital abnormality of the heart.Anemia.Exercise.Sudden stress, such as fright.High or low blood pressure.Smoking.More items...read more >>
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