Which condition results from excessive thyroid activity?

• A. Hyperthyroidism
• B. Hypothyroidism
• C. Endocarditis
• D. Myocardial Infarction

Answer: (A)

Excess thyroid activity speeds up the body's metabolism because the thyroid hormones (T3 and T4) are overproduced. This condition is hyperthyroidism. It brings symptoms such as weight loss with increased appetite, heat intolerance and sweating, a rapid or irregular heartbeat, anxiety, tremors, and trouble sleeping. In contrast, hypothyroidism is the opposite, with tiredness, weight gain, cold intolerance, and a slower heart rate. Endocarditis is an infection of the heart’s inner lining or valves, not linked to thyroid function, and a myocardial infarction is a heart attack caused by blocked blood flow to the heart muscle. So, the condition resulting from excessive thyroid activity is hyperthyroidism.