Common Signs Indicating Hyperthyroidism

Increased Sweating & Heat Intolerance

As we know, hyperthyroidism occurs when the thyroid produces too much thyroxine, a naturally occurring hormone within the body that affects the regulation of the body’s metabolism. When there is an increase in thyroxine, it causes the body’s metabolism to increase, leading to a rising body temperature that can be tricky to regulate. Heat intolerance, perspiration, flushing, and excessive sweating are all symptoms that can occur due to the increase in this hormone.

When functioning correctly, the thyroid is able to properly respond to changes in temperature by adjusting the body’s basal metabolic rate (BMR) and releasing hormones to promote cellular release (aka sweating) or retention of heat, allowing the body to remain at a comfortable temperature. With hyperthyroidism, the body cannot regulate these hormones as easily, therefore, many patients have difficulty adjusting to the heat, causing them to become heat intolerant. As a result of them 'overheating,' many patients will begin to excessively sweat.