Heat intolerance

Alternative names:

intolerance to heat; sensitivity to heat

Definition:

The inability to be comfortable when external temperatures rise.

Considerations:

Heat intolerance often produces a feeling of being overheated and can produce heavy sweating. Heat intolerance usually comes on slowly and persists long-term.

Common causes:

• thyrotoxicosis (Excess thyroid hormone increases the basal metabolic rate, which causes body temperature to rise.)
• amphetamines (such as appetite suppressants)

Note: There may be other causes of heat intolerance. This list is not all inclusive, and the causes are not presented in order of likelihood. The causes of this symptom can include unlikely diseases and medications. Furthermore, the causes may vary based on age and gender of the affected person, as well as on the specific characteristics of the symptom such as quality, time course, aggravating factors, relieving factors, and associated complaints. Use the Symptom Analysis option to explore the possible explanations for heat intolerance, occurring alone or in combination with other problems.