Which of the following is a symptom of hyperthyroidism?

Increased sweating is a well-documented symptom of hyperthyroidism, which occurs when the thyroid gland produces an excess of thyroid hormones. These hormones regulate metabolism and numerous bodily functions, including temperature control. As metabolism speeds up due to elevated thyroid hormone levels, the body's heat production increases, leading to a higher propensity for sweating. Individuals with hyperthyroidism often report feeling warm or hot, and they may perspire excessively even in cooler environments.

Other symptoms of hyperthyroidism may include weight loss, increased heart rate, nervousness, and tremors. The presence of increased sweating distinguishes it as a key symptom of the condition.