Eating and hypothermia

Date: Oct. 26
Mileage: 32.5
October mileage: 573.4
Temperature upon departure: 39
Rainfall: 1.36"

I had a cold-weather epiphany today: The secret to staying warm is staying fed.

It seems pretty simple, but it hadn't really occurred to me how important fuel is to the whole equation. I've been reading different accounts of people who contracted hypothermia while mountain climbing. In many cases, they were bundled up and climbing fairly strong. The temperature didn't change. The weather didn't change. One minute they were fine, and the next minute they were hypothermic. What happened? Does hypothermia really strike at random? Without warning? The whole idea was very scary.

Here in Juneau, during the fall monsoon, the temperature drops very slowly over time as the wind gradually picks up strength. It gives off the illusion of consistency, but there is change. By late October, the tail-end of the monsoon, the daily high temperatures have dropped from low-50s to high-30s. The 15 mph south winds gusting to 25 are now 25 mph south winds gusting to 50. If I was transported through time from early September to late October, I would likely change my habits drastically to match the change in weather. But when the cold weather settles in over weeks of barely-detectable increments, I may add a layer here and there, but I do little else differently.

However, the 30-mile rides of early September were not the same as the 30-mile rides of today. I set out with the same goals and the same destinations, forgetting that now the same distance takes longer, seems harder, and generally consumes more energy. What I feel at the end of these rides is cold. Sometimes it's a barely noticeable drop in my core temperature. Sometimes it's enough to spur shivering ... mild hypothermia. I thought the causes were failures in my clothing system. The next day I would add layers that I usually ended up getting rid of because I would overheat early in the ride. But today I tried something different ... something I don't usually do ... I set out on a 30-mile road ride with an Clif Bar in my pocket.

Chugging straight into a headwind at a screaming pace of 9 mph during my return ride, I caught the full force of a monster gust that nearly stopped me completely. I had to click out of my pedals to keep from tipping over. An amazing gust - the kind that sucks the oxygen right out of my lungs and leaves me gasping and sputtering. I could feel the wind tearing through my layers, prickling my skin and chilling my torso. The cold was already setting in, and I still had seven slow-moving miles before I would be home. It seemed a good time to eat the Clif Bar.

After that, I perked up considerably. My pace picked up; my body started to produce heat again; I could feel the core fires flare and beads of sweat began to form on the back of my neck. A few more monster gusts slowed my pace to 5 mph at times, but they didn't stop me. It finally made sense - it's been true all this time. I hadn't become overly susceptible to the mild cold of the fall monsoon. I had bonked.

When I came home, I finally began to leaf through the promisingly thorough but deathly boring medical booklet I recently picked up, "Hypothermia, Frostbite and Other Cold Injuries."

"In wilderness environments, hypothermia results from:
1. Inadequate protection from the cold.
2. Inadequate fluid intake resulting in dehydration.
3. Inadequate food for metabolic fuel to be burned during exercise."

Without caloric replacement, the body becomes much less efficient at regulating its own heat. It begins to tap fat stores to keep organs and muscles functioning, but these sources of fuel are too slow-burning to be efficiently used to produce heat. So even the early stages of a bonk can be dangerous at low temperatures. One of the first remedies the medical book recommends for a mildly hypothermic person: Sugar drink (one of the most quickly metabolized sources of fuel. Interestingly, the book said it doesn't matter if it's hot or cold. Hot drinks do little in the longterm to warm the body's core temperature. They just feel good.) Once you've had the sugar, embrace the urge to shiver violently. And try to commence exercising. The body can bring itself back from hypothermia, as long as it has something in the tank to burn.

Interesting. It seems so simple, but this is a real breakthrough for me. It's inspired me to take more stock of my energy level and food intake while riding. Bonking is annoying in the summer; it can be deadly in the winter.

Thursday Pugsley expedition

Date: Oct. 25
Mileage: 9.4
October mileage: 540.9
Temperature upon departure: 41
Rainfall: 0.25"

Another Thursday, another low-mileage, time-consuming, mud-slinging, shin-bashing exploration ride on the Pugsley.

Another ode to the big wheels, great conquerors of mud.

Geoff told me I should try to ride the Treadwell Ditch Trail, the closest trail to our house. It's a cross-country ski trail that's marginally bikeable in the winter, when the snow conditions are good (which is to say, terrible for cross-country skiing.) But in the off-season, the trail is so crappy muddy that even hikers rarely use it. An endless web of wet roots makes it completely unrideable (wet roots are, after all, the slipperiest substance known to mountain bikers. You could run an oil slick across a patch of glare ice, and it still wouldn't be as slippery as a string of wet roots.) But Pugsley is such a tank that you don't even have to pick the perfect line through the roots. You just point the bike forward and go. (Which is good, because I still think the Pugsley steers like a bus with a flat tire.)

I know that riding muddy trails is generally a violation of mountain biking ethics. But the reasons for that ethical code don't really hold up here in the rainforest: The trail won't dry with deep tracks through the center, because the trail never dries. Rain works faster than even the best intentions. It won't take more than a couple of days for all evidence that I came through here to be wiped away. So yes, I do ride in the mud without guilt. I ride in the mud at 4 mph. I ride in the mud with a big mud-eating grin on my face, because my teeth are full of mud, and my torso is covered in mud, and my wheels are sinking to the hubs in mud, but I'm still riding ... in the mud. And I've never been able to do that before.

It's a ton of fun ... but not exactly efficient. It took two hours to cover less than 10 miles today - only seven of which was actual trail. Ever since I finished this bike, I have only used it as a toy. On the beach ... in the mud ... weaving through abandoned army infrastructure. It's all been about having fun. Someday, not too far into the future, I plan to use this bike for serious training. And right now, it's hard for me to even imagine it. Hill intervals? Nordic trail laps? Day-long endurance rides? Overnighters?

For now, we will splash in the mud and enjoy the last days of our innocence.

Into the Wild

Date: Oct. 24
Mileage: 31.3
October mileage: 531.5
Temperature upon departure: 39
Rainfall: 0.30"

Last weekend, Geoff and I went to see “Into the Wild” with several friends. As we were walking out of the theater, I was just about to rave about the movie when my friends lit into the film’s subject, Chris McCandless. The conclusion they drew was that Chris was a “total douche” and the actor who played him was “not believable” but the movie was “OK.”

We didn’t have a chance to discuss it much further, but I wish we had. Of all of the books I’ve read, Chris McCandless is one of those literary figures that stuck with me, like Edward Abbey or the pseudonyms of Thomas Wolfe (because I’m drawn to creative nonfiction and biographies, most of my favorite literary characters were living, breathing people.) Like any favorite literary character, I saw pieces of myself in Chris McCandless and empathized with his pain and his joy. I read Jon Krakauer’s book long after it dropped off the best-seller list. I missed most of the fallout and didn’t follow the pre-release movie chatter. So I had no idea McCandless’ life evoked so much widespread disdain. But it seems, if my friends' and coworkers' opinions are any indication, my view that Chris McCandless is “not a douche” puts me in a minority of Alaskans.

It makes sense to me that person is either going to identify with Chris McCandless, or they’re not. What catches me off guard is the venom. Why hate him? Because he was stupid? (Given his success in his education, I think it would be hard to argue that he was stupid.) Because he was selfish? (Selfishness is such an omnipresent personality trait. I think it’s arguable that everybody is selfish in their own way.) Because he was naive? (Also such a common and life-shaping quality that it’s practically a virtue.) Because of the cruel way in which he cut off his family? (I think this is the great tragedy of the story, but I can step outside myself and recognize how a person could feel so alienated, and so trespassed against, that they felt they had no choice.)

Maybe people simply dislike him because he died, needlessly. People die of self-destructive means every day. People die from alcoholism and drug abuse; they drive recklessly and take dangerous chances. People make bad choices. People make fatal mistakes. But rarely do they draw so much ire ... or so much fame.

I wonder if that may be the anger's source ... the fame. What makes Chris McCandless so special? He certainly didn’t do anything new or original, especially in the eyes of many Alaska settlers, who have been tromping off into the subarctic wilderness and making their own way for more than a century. The fact that McCandless was an outsider, and completely unprepared, makes his canonization all the more infuriating. So many Alaskans were successful in their own “into the wild” endeavors, and remained anonymous their entire lives. When Chris died, he lost his anonymity. And with that, he evolved into something like a patron saint to the vagabonds and vagrants at heart, the people who are disillusioned with society and curious about what it would be like to give up on it completely - but don’t have the courage to do so.

I neither resent Chris McCandless’s fame, nor do I think he’s a “saint" or a “hero.” I think he was a really compelling person who espoused some of the ideals I cherish (not unlike Edward Abbey) but took an extreme path I would never take. Extreme actions tend to evoke extreme reactions. Chris McCandless has a volatile place in American history because his simple but stark story causes us, whether consciously or subconsciously, to ask some unsettling questions of ourselves. His extreme convictions cause us to question our own faith. His extreme passion causes us to ask where our own passion lies. His extreme solitude causes us to take stock of our own relationships. His extreme death causes us to consider our own mortality. I think Chris angers us not because he failed in his quest to live what was, at least in his mind, a true existence. It’s because he succeeded.