Factors that increase the risk of hyperthermia may include:
* Dehydration.
* High blood pressure or other health conditions that require changes in diet. For example, people on salt-restricted diets may be at increased risk. However, salt pills should not be used without first consulting a doctor.
* Heart, lung and kidney diseases, as well as any illness that causes general weakness or fever.
* Use of multiple medications. It is important, however, to continue to take prescribed medication and discuss possible problems with a physician.
* Reduced sweating, caused by medications such as diuretics, sedatives, tranquilizers and certain heart and blood pressure drugs.
* Age-related changes to the skin such as poor blood circulation and inefficient sweat glands.
* Being substantially overweight or underweight.
* Alcohol use.