I missed this one, I am packing for the big move and didn't watch...sounds like I missed a good one. When I was in the Army, we did alot of NBC training (Nulear, Biological, Chemical) which invovles getting into your MOP suit..basically a neoprene and charcoal suit covered in BDU material. While training for this type of event is important..it really sucks. The suit is extremely hot..while training in July while stationed in TX, I was running around with my M-60 and full battle rattle....for over 2 hours...I can tell you, while standing in the decontamination line..I blacked out. I was told that I simple fell over like a sack of potatoes. And I was not alone...most if not all the soldiers present were "cheating", by removing thier Gasmask and drinking from thier canteens..hell, just trying to breath! I remember none of it, I woke under a tree with an IV in, and felt like I was in Ice water...My skin was crawling and I had the worse headache of my life..my skin was red and hot to the touch, but I felt cold...these are not good symtoms to have, we trained alot on preventing heat exaution and stroke..I believe to this day, that if that was a real world mission, that most if not all of my unit would have perished. Over 50% of the guys from my platoon were in the shade and hurting..the other 50% were on thier way out, but many had been in the fromt of the line getting out of thier suits about one half hour before the rest. It was 102 degrees in the shade, and the suit can raise yor body temp by 20 degrees IIRC. The moral of the story is, that if a fit well hydrated soldier can fall out after 2 hours of extreme heat...that after a couple of days..without the "suit" you can be in world of hurt quickly. It is dificult to judge your own condition once you are tired. Whenever in the outdoors, knowing what heat stroke looks like, and all the symtoms, being as careful as you can, and staying hydrated...is very important. This was an extreme training exercise, carrying all the gear, and running around playing GI Joe, wearing the suit..this is not what you would experience in the wild on a hike...but the result could be the same after a longer duration of time.
Gene