[Thermal stress. Dangers, tolerance, prevention and cure].

The Authors after a description about the thermoregulation processes and after having considered the tolerance of the human body to the thermic stress, point out the dangers of the exposure to the high or low temperatures in some labour conditions and, in particular; in the aerospace ambient. A great importance is attached to the method of prediction of individual tolerance to varied temperatures. Lastly the Authors discuss the prevention and treatment of heat-stroke and of frost-bite.