Heat stroke includes neurologic impairment as a person's body temperature r
eaches 40.5 degrees C (105 degrees F) as a result of a failure of thermoreg
ulation, The physiologic complications of heat stroke are well described in
the literature, The domains of cognitive functioning affected and the seve
rity of impairment resulting from heat stroke can vary from mild deficits i
n attention and memory to severe global dementia. There can also be changes
in affect and personality that are equally debilitating. This article pres
ents the neuropsychological test results of three active duty soldiers who
suffered heat stroke and were tested within 2.5 months of injury.