23 Symptoms That Could Indicate Hyperthyroidism

Lisette Marie

3. An Irregular Heartbeat

Checking heartbeat. Photo Credit: Dreamstime @Dreamz

Overproduction of thyroid hormones affects the heart’s function in many ways. Hyperthyroidism may cause abnormal heart rhythm, the sensation of an irregular heartbeat, or a fast heart rate. Certain medications prescribed for thyroid function may also cause an irregular heartbeat or other undesirable side effects. Beta blockers are designed to slow down heart rate and reduce anxiety but may produce feelings of depression, fatigue, and the inability to concentrate in people with an overactive thyroid.

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3. An Irregular Heartbeat

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