Although both conditions share the common characteristic of elevated body temperature, hyperthermia is technically different from fever because . Although both conditions share the common characteristic of elevated body temperature, hyperthermia is technically different from fever because . hyperthermia is a condition in which the temperature is higher than in fever fever is a condition in which there is a change in the body's temperature set-point hyperthermia is a condition in which pyrogens act to increase body temperature fever is a condition in which the metabolic rate is increased to a level higher than in hyperthermia