What are some typical signs and symptoms of hyperthyroidism?

Hyperthyroidism is characterized by an overproduction of thyroid hormones, which increases the body's metabolic rate. One of the hallmark symptoms of this condition is agitation, as the excess thyroid hormone can lead to increased nervous system stimulation, resulting in anxiety or restlessness. Heat intolerance is also a significant symptom, as individuals with hyperthyroidism often experience an inability to tolerate warmth due to an elevated metabolic rate, leading to increased perspiration and changes in thermoregulation.

The other options describe symptoms that are more consistent with hypothyroidism or are not classic indicators of hyperthyroidism. For instance, weight gain and lethargy typically align with a slower metabolic rate seen in hypothyroidism. Similarly, a slow heart rate and hypotension are also indicative of a diminished thyroid function. Confusion and low appetite can occur in various conditions but are not characteristic symptoms of hyperthyroidism. Understanding these signs and symptoms leads to better recognition and management of thyroid disorders.