[The classification of human thermal states during overheating]

A classification of human heat states is based on mechanisms of changes in human temperature status. Quantitative integral criteria (factors F1, F2, F3) elaborated earlier are the main principles of classification, which reflect the mechanisms of temperature changes in various regions of human body exposed to overheating. The classification comprises 4 classes. The first two represent different levels of optimum state, the third one is upper allowable level of overheating, the fourth one--maximal level of overheating. The classification usable for diagnosis of human heat states varying from comfortable one to critical overheating.