Why does hyperthyroidism frequently cause heat intolerance?
Answer
It increases the metabolic rate, generating excess internal heat
The thyroid gland plays a significant role in regulating the metabolic rate of the body. Hyperthyroidism occurs when this gland becomes overactive and produces an excessive amount of thyroid hormone. This surplus of hormone acts as a systemic accelerator, causing the metabolism to run significantly faster than normal. Because metabolism naturally produces heat as a byproduct of burning energy, a higher metabolic rate results in more internal heat production. Consequently, the body struggles to maintain a stable core temperature, resulting in a persistent and uncomfortable feeling of heat intolerance.
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