• "Normal' body temperature varies considerably.
• Diurnal variation with peak in afternoon.
• Oral temperature in excess of 37.8°C (100.2°F) should be considered abnormal.
• Hypothalmic nuclei determine 'set-points' for body temperature.
• Balance between heat loss and production.

Fever and Hyperthermia are not the same thing.

• Fever: an elevation in body temperature that results from increase in the hypothalmic heat regulating set-point.
• Desirable physiological response.

  Photo courtesy of Two Boots Pioneer Theater, New York, NY