questionedithistorytranslationsCurrent version This question is deleted added by Ts Dec. 18, 2017, 10:46 p.m. What are the upper and lower human body temperature boundaries in which life is not threatened? 20 - 41 oC18 - 42 oC21 - 43 oC17 - 44 oCCorrect body temperature is between 35.8 deg C - 37.3 deg C (deg C czyli Degree Celsius). Over 40 deg C there is significant body fluid loss. Below 20 deg C heartbeat stops.Do you know that....the lowest body temperature at which man was saved was 13 ° C? Ts wikipedia → Human body temperaturereach: rather globalmedicineVotes +1 Very interesting! Ninjai +1 Very interesting! olorion Acceptable th3pizgat0r