Which of the following is NOT a symptom of hypothyroidism?

In the context of hypothyroidism, it's essential to recognize the common symptoms associated with the condition. Hypothyroidism occurs when the thyroid gland does not produce enough thyroid hormones, leading to a variety of physiological changes.

Cold intolerance is a classic symptom of hypothyroidism because reduced levels of thyroid hormones can affect the body's ability to regulate temperature, leading individuals to feel excessively cold. Similarly, a decreased pulse rate is often observed in individuals with hypothyroidism as it can slow down metabolic processes, including heart rate. Weight gain is also frequently associated with hypothyroidism; this occurs due to a slowed metabolism, leading to weight accumulation despite unchanged or reduced dietary intake.

In contrast, an increased appetite is not typically associated with hypothyroidism. In fact, individuals suffering from this condition often experience a decrease in appetite alongside weight gain. Thus, the presence of increased appetite does not align with the physiological effects of low thyroid hormone levels, making it the correct choice for the symptom that is NOT associated with hypothyroidism.