Diseases and Conditions

Signs You May Have Hyperthyroidism

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Irregular Heartbeat


When the body produces too much of the hormones mentioned above the heart’s function can be negatively impacted. Some consequences of having an over productive thyroid include an abnormal heart rhythm, an irregular heartbeat, and an increased heart rate. Unfortunately, some of the medication that is used to treat hyperthyroidism can actually lead to an irregular heartbeat in addition to other negative side effects. For example, one medication known as Beta blockers slow down the beating of the heart; however, they can also have the undesired effect of invoking feelings of depression, fatigue, and a decrease in the ability to concentrate in individuals whose thyroid is overactive.