HumEx, that link worked like
HumEx, that link worked like a charm. Like the person who commented on this, I also saw a TV show that mentioned vasodillation. I think it was on the Discovery Channel, it was a program about the extremes people can condition their bodies to. The CIVD example was Steve Smith, a Navy SEAL instructor (who has a couple of fitness books on the market). They dunked him in a tub of ice water for about an hour and he was able to keep his core temperature high. They did all kinds of IF imagery and had thermistors in him - nifty stuff. SEALs train themselves for this in numerous ways, from early morning pool exercises in cold water to laying in the pounding surf for long periods of time. Interesting side note, on the program, Mr. Smith was able to navigate an obstacle course, assemble a sidearm, enter a simulated attack situation, and shoot an adversary right between the eyes in faster time after his dunking than before. It was pretty incredible!