Which of the following is NOT typically associated with the symptoms of hyperthyroidism?

Weight gain is typically not associated with hyperthyroidism. In fact, hyperthyroidism is characterized by an increased metabolism, which usually leads to weight loss rather than weight gain. People with hyperthyroidism often experience symptoms such as anxiety due to heightened nervous system activity, palpitations from an increased heart rate, and hair loss as a result of hormonal imbalances affecting the hair growth cycle. Each of these symptoms is directly linked to the elevated levels of thyroid hormones in the body, which drive metabolic processes. Thus, the presence of weight gain in the context of hyperthyroidism would generally be considered atypical, making it the best choice for what is NOT commonly associated with this condition.