What is "heat intolerance"

n. inability to tolerate or to be comfortable in warm or hot environments.

Heat intolerance is a symptom reported by people who feel uncomfortable in hot environments. Typically, the person feels uncomfortably hot and sweats excessively.

Compared to heat illnesses like heatstroke, heat intolerance is usually a symptom of endocrine disorders, drugs, or other medical conditions, rather than the result of too much exercise or hot, humid weather.