Conversation so far:
what is a human beings normal body temperature
The average normal body temperature is generally accepted as 98.6 Farenheit.
What is the lowest body temperature humans can function at?
The record for the lowest body temperature at which an adult has been known to survive is 56.7 Farenheit, which occurred after the person was submerged in icy water.

Question: How about the highest temperature?
Self-contained rewrite: What is the highest body temperature humans can function at?