Hotter than the Hinges of Hell July 21, 2010

That’s how my dad described some beef stew my wife fixed us for lunch one day. It can also describe the weather around here over the past month. We’ve had many days in the high 90’s and even a handful in the triple digits. It’s uncomfortable and can be dangerous during good times, but imagine if it happened during a grid down situation. I thought we’d review some of the hazards associated with extreme heat and some steps we can take to mitigate the dangers. For source material, I am using some military documents (links at the end) and my own experiences as a Marine in the deserts of California, Saudi Arabia and Kuwait, and as a police officer in a summer resort area. I present this as general information, not as medical advice. I encourage you to seek professional medical advice on this topic.

What is a heat injury?

Heat Cramps – These are the mildest form of heat injury, but in a crisis situation, could be debilitating. Your body sweats to lose heat buildup. The hotter your body becomes, the heavier you sweat. The heavy sweating causes your body to lose salt and water. That can cause heat cramps, usually as intermittent muscle cramps in the calves and thighs.

Heat Exhaustion/Heat Prostration – This is more severe. It indicates that your body has lost a significant amount of water. Symptoms include weakness, headaches, dizziness, profuse sweating, clammy skin, and elevated body temperature.

Heat Stroke – This when your body’s core temperature exceeds 105.8°F (41°C). Symptoms include confusion, aggressive behavior, red, dry skin, and may quickly lead to unconsciousness and death.
All of these result from the body failing to regulate its heat. Factors in that failure may be internal (not acclimatized, health and fitness issues, recent alcohol intake, not rehydrating, and prior heat injury) or external (direct sunlight/lack of shade, constricting or heavy clothing, extremely high temperature, high humidity, and high levels of activity).

Prevention

There are five basic factors associated with preventing heat injuries.

Acclimatization – As we live much of our lives in air-conditioned splendor, our bodies have gotten use to it. The office worker who goes out on a 90° Saturday to do yard work is going to be much more susceptible to a heat injury than the person laying hot asphalt all summer in 95°. The office worker is not acclimatized, the asphalt layer is. That doesn’t give you the excuse to stay on the couch all weekend! If you are not acclimatized, you simply need to take more prevention measures and pay closer attention to symptoms. If you anticipate long term exposure to hot environments (new job, summer camping trip, etc…) start gradually building your activities and heat exposure for a week or two prior to the new activity.

Hydration – most people are dehydrated on a regular basis. If you are thirsty, it’s too late. A cold beer or an iced tea, while they might make your feel good as you drink them, are bad in a heat environment. The alcohol and caffeine are diuretics and contribute to dehydration. You need to maintain hydration by drinking water or diluted sports drinks on a regular basis, no matter your feelings of thirst or not. Drink a half quart to a quart and a half every hour, depending on how much you are exerting. Keep an eye on your urine output. It should be as close to clear as possible. Dark yellow urine indicates dehydration. Stop your activity and rehydrate before resuming.

Don’t ration water. Drink up to maintain hydration. There are countless stories of people dying in the desert with water still in their canteens. A sip here and a sip later will dehydrate you. Drinking your fill when you have the chance may keep you hydrated until you find relief or rescue.

Do what you can to have water available. We always carry a couple of gallons in our vehicles. I carry a bottle of water to work and refill it throughout the day. We store several cases of bottled water in the house. I have a Katydin Combi-Filter that will make even the nastiest of water safe to drink. I have several water tasks on the to-do list. I need to get several bottles of purification tablets, build a bucket system to use our well if the pump or power fails, and get a Big Berkey filter system to sit on the kitchen counter.

Work/Rest Cycle – The hotter it is and the harder the work, the shorter the work rotation and shorter the rest rotation. For “hard work” in a Heat Category 1 (78° - 81.9°F), the Army indicates 40 minutes of work to 20 minutes of rest. In a Heat Category 5 (>90°), they indicate only 10 minutes of work to 50 minutes of rest. Now, I’m not sure it’s realistic to work 10 - rest 50 when it’s 91°, but be sure you are resting sufficiently to cool your body down.

Shade – In a hot environment, shade is your friend. Old time desert travelers would hunker down and rest under a rock outcropping or build a lean-to for shade during the heat of the day and travel early in the morning or late in the afternoon, maybe even at night if the moon light was bright enough. Even if you have to work in direct sunlight, try to find or make shade for your rest breaks.

Clothing – We’ve all seen the old Western movies where the Mexican towns’ people wear the loose, cotton, long-sleeved shirts, large, straw sombreros, and woven ponchos. That wasn’t just for Hollywood, that was for real. They lived, worked, and yes, took afternoon siestas, in the hot Southwest sun. The Bedouin tribesmen of the Arabian peninsula dress in layers of loose, natural fibers and wear keffiyeh that keep their heads shaded and double as protection from sandstorms.

Take clues from the people who have lived and thrived in hot environments for generations. Wear loose, natural fibers. Keep exposed skin covered. A hat with a large brim made of breathable materials will do wonders for keeping you cooler. Some people rave about Under Armor and similar new wicking fabrics for keeping cool. I don’t have any experience with them. Please leave comments about them if you do.


First Aid

For most heat casualties, first aid needs to happen rapidly to ensure it does not get worse and lead to death. I’m going to reference the Army’s “7 R Management Model” for responding to heat injuries.

• Recognize the symptoms as a heat injury
• Rest in the shade or in air conditioned location
• Remove clothing – maybe just loosen it if the casualty is not severe
• Resuscitate – a person with heat stroke may lose consciousness and stop breathing – apply CPR as indicated, or monitor if CPR is not needed
• Reduce temperature as fast as possible with wet towels, fanning, ice water, etc…
• In the Mojave Desert, several of our Marines suffered heat stroke. Submerging them to the neck in ice water tubs helped prevent permanent damage or death.
• Rehydrate with cool water if the person is conscious
• Rush to medical treatment if circumstance dictate

Prevention is far better than treatment. Heat can kill or put out of commission the strongest and fittest of us under the wrong circumstances. Hydrate, rest, dress right, and seek out shade if you in a hot environment. Be alert for the symptoms of heat injury, both for yourself, and for others around you. Start treatment at the first sign of heat injury, and don’t delay seeking professional medical treatment if needed.

Resource: USMC Heat Injury Prevention

Prepper Ponderings July 2, 2010

As I work on the blog this morning, the heat wave has broken and it is a beautiful 70 degrees. I am sitting on the back porch listening to The Survival Podcast and enjoying a Rocky Patel Vintage 1990 with a Diet Coke… I know, the DC is bad for me, but I am down to about three a day instead of the 6-8 that I used to drink. As for the cigar, my doctor (who is also a marathon runner) said he can’t tell me that a couple premium cigars a week are a health hazard. I don’t use any other form of tobacco, and my other vices are few.

I thought today I would start a new blog feature, Prepper Ponderings. This will be an occasional entry of short reviews, commentary or questions for items that don’t have enough information to make a whole post.

Update on my EDC Kit

I’ve been carrying the kit everywhere I go for the past week. Within just a day I had issues with the key ring/carabiner jingling and announcing my movements. I was deciding to cut a piece of bike inner tube to make a silencer for the keys when I realized that the fabric loop on the side of the pouch that the ‘biner clipped to was coming unwoven. So, I just cut the whole loop off and now either clip the keys to my belt loop or stick them in my pocket. I have added a half-sized Bic lighter and a CPR face shield as planned. I still need to swap out the flashlight with a Maglite Solitaire (I’ve decided to go with the LED bulb for long life). The kit is working as planned, and has not raised any questions or eyebrows at work.

Magazine reviews

I get folks asking me what are some magazines they can get to give them information that will help guide them to more self-sufficient living. From the early 80’s into the 2000’s, I read American Survival Guide (originally Survival Guide). I still have many back issues and refer to them sometimes. A friend and I even got an article published about our experiences in Kuwait during Desert Storm. ASG produced a slick magazine with great articles on topics as varied as wilderness survival, the latest guns, preparing food for long-term storage, and hardening your home. As I understand it, they sold out to a large publisher and it ruined the content, quickly driving the magazine to extinction. If you can get back issues on EBay or Craig’s List, go for it!

Jim Benson was the editor of ASG. He currently has an on-line only survival magazine, Modern Survival, but I haven’t subscribed. From the sample articles I’ve seen, it looks to be of the same quality as ASG. I just am not a fan of on-line magazines. If any of you subscribe, please leave your assessment in the blog comments.

I currently subscribe to two magazines that would be of interest to my readers, Backwoods Home and Mother Earth News. Backwoods Home is a newer mag, started by the publisher and his family back in 1999 (I think that year is right), and still a family run magazine. BWH is a great magazine. It has a similar range of articles as the old ASG, with less of a focus on guns (there is a monthly article by gun guru Massad Ayoob) and lots of Q&A. The publishers are unashamedly libertarian in their political beliefs, but confine that side of it to just a couple of pages a month. If you don’t lean that way, either read those pages to broaden your outlook or skip them. Don’t use that as a reason to avoid BWH completely. They offer a great series of books and annual anthologies as well.

Mother Earth News has long been a major player in the self-sufficient living sector. They do a lot on primitive and “green” living skills. Years ago, they had a reputation as strictly a hippie, commune-living, technology is bad magazine. Today, there are still a couple articles a month that have a point of view from that end, but like BWH, don’t read those articles if you want, but don’t use that as a reason to avoid the magazine completely. They also have a great selection of books, and you can get every issue ever made on a DVD for just $40-50. Look on-line for some really good deals on subscription rates.

There are a few other magazines I pick up a couple times a year at the bookstore. Wilderness Way, Back Home, and Countryside & Small Stock Journal sometimes catch my eye with the cover story, but I don’t get them frequently.

Ron Hood, a long-time leader in the survivalism field, has recently started a new magazine, Survival Quarterly. I haven’t seen an issue, but I have heard good things about it. I plan to send off my subscription soon. Again, if you get SQ, please post your review in the blog comments section.

How does my garden grow?

I’ve mentioned before that I am working on my first garden. I am growing everything with nothing but dirt, compost and water. No chemicals or other additives. I guess you could call it organic. My lettuce varieties are going great! I have several varieties and we enjoy eating them in salads. My carrots look good above the dirt, but I haven’t harvested any yet. I don’t know how to check if they are ready! My tomatoes (four varieties of heirloom) have not produced any fruit, yet. I have some flowers blooming, so I hope to get at least a few ‘maters soon. The cucumbers are out of control. They have overgrown their stakes; I have a few ready to harvest this weekend, and dozens of tiny cukes getting ready to burst forth. I’ll be eating cukes, giving them to neighbors and co-workers, and maybe even trying to put up some pickles.

On that note, I picked up the latest version of the Ball Blue Book, one of the best all around user guides to canning. My folks tried making relish, chow-chow and chutney back in the 80’s and my step-mom is going to dig out the pot, tools and jars from the attic for me.

That’s about it for today. Let me know if you like this format to intersperse with the longer, single topic posts.