So far, he sounds like a normal athlete athlete. What he does next, however, is extraordinary. He raises his body temperature by almost 3 F (1.4C) to 101 F (38C). He does it all by mental control. Then Then Pugh dives into the water. Most people would die in just a few minutes in the cold water. Their body temperature would drop to a dangerously low level. Pugh doesn’t even shiver2.In the is the time it takes him to complete a one-kilometer swim (about half a mile)