Which symptom is commonly associated with thyrotoxicosis?

Thyrotoxicosis, a condition characterized by excessive levels of thyroid hormones in the body, is commonly associated with heat intolerance. This symptom arises because thyroid hormones significantly increase metabolic activity, which can lead to an increased body temperature and a heightened sensitivity to heat. Individuals with thyrotoxicosis often experience sweating and discomfort in warm environments, contrasting with cold intolerance, which is typically seen in conditions of low thyroid hormone levels, such as hypothyroidism.

The physiological effects of the elevated thyroid hormones can also cause other symptoms such as weight loss, palpitations, and anxiety, alongside the prominent symptom of heat intolerance. Understanding this context helps clarify why heat intolerance is specifically linked to thyrotoxicosis.