Arlene Robinson- Preparedness
A few years ago, I attended a class by Laurence Smith on Cold Weather, and the physiology behind avoiding hypothermia. There is a short (10 min) video on youtube they had us watch that's interesting called 'freezer test' that you should watch. Has two people dressed in different protection outfits and puts them to the test. It's changed forever how I view staying warm.
This is a 'must watch' in my opinion!!!
Also, the history of "Pals" on youtube is supposed to have some great information, although I haven't seen this yet.
Some quick, general notes from the class:
* AIR insulates! So when you are dressed for cold weather... look FAT!
*Foam holds dry air next to your body: it's the best insulator.
*Hypothermia occurs when your CORE temp is low. Your core is from your head down to your thighs, excluding your arms. Your hands and feet will stay fairly warm if your core temp is good. *When hypothermia sets in, ands and feet will get cold, circulation will decrease, coordination decreases, may become irrational, and eventually suffer a slow, painful death.
Some scientific laws:
*Water moves away from heat!
*People are like large bags of water and we leak all of the time. Waterproofing in extreme cold can kill you, because water (excreted from your body) freezes and ice builds up between the layers (of clothing).
*Layers are ok if it's not too cold. But when moisture forms between the layers, it freezes and lowers your core temp.
*****DEHYDRATION is the primary TRIGGER for hypothermia! (Just like dehydration kills us when it's too hot!)
*We need more fluids when cold.... even more than when we're hot.
*When hydration decreases, we get irrational, can't concentrate or think, and coordination goes down.
Have water packets in your 72 hr. emergency kits!
As you will see in the video, foam suits are the best for cold, with a NYLON shell over top (not cottons or wools). Must be synthetic materials.
*1 inch foam best for below 0 temps. 1/2 inch foam is fine down to around 0 degrees. If your home has no fuel/electricity for long term, your house temp could be around 20 degrees! You will eventually run out of emergency fuel for alternate heat sources, so one of these foam suits will keep you alive. You can also line sleeping bags etc. with the foam!!! Keep foam away from heat or flame. There’s more info on the following web site. Foam clothing can be made or purchased.