Maximum body temperature should be pretty obvious - at least with one or two degrees (Celsius) of wiggle room.
Though, with minimum body temperature, do you mean minimum while conscious or minimum survivable? Because there have been cases where people were successfully resuscitated after being submerged in freezing water for a very long time:
An 8-year-old boy fell through pond ice and was submerged for ≥147 minutes. Nadir peripheral body temperature was 7 °C (45 °F). After rewarming with extracorporeal membrane oxygenation, prolonged hospitalization, and neurorehabilitation, the child recovered.
At 6-month follow-up, he was giving short commands, standing without support, riding a tricycle, eating soft foods, and relearning simple tasks.
Ah, that makes a bit more sense.
Maximum body temperature should be pretty obvious - at least with one or two degrees (Celsius) of wiggle room.
Though, with minimum body temperature, do you mean minimum while conscious or minimum survivable? Because there have been cases where people were successfully resuscitated after being submerged in freezing water for a very long time:
https://www.jacc.org/doi/10.1016/j.jaccas.2025.104885