If you have any "mates" you even think might do this to you, take a seriously hard look and ask yourself yer mates are such tosspots and if it's maybe you thats part of the problem.
Interesting. I found a paper on cold adaptation which said that apart from being shorter and stouter, the Yaghan's only cold adaptation was that they had a higher resting heat generation (160% of normal). Australian Aborigines were likewise cold adapted (for sleeping outside when temperatures drop to ~0C). But it went on to say that most people could start to adapt this way ... but it took over 14 days in the cold.TLM, you may be correct; the Fuegians were famed for their lack of clothes in a cold climate. Whether they were THE most cold adapted...no idea.
(The last Yaghan speaker died a couple of months back I believe).
The Neanderthals were well adapted to the cold, so I suspect they might not have bothered much with clothing.
People continually living in cold temps have the "brown fat" mechanism of heat generation, it works with out shivering. I remember reading (From: "Life in the extreme" I think) that the first adaptation takes about two weeks but one tends to lose that fast when returning to more normal temps.I found a paper on cold adaptation which said that apart from being shorter and stouter, the Yaghan's only cold adaptation was that they had a higher resting heat generation (160% of normal). Australian Aborigines were likewise cold adapted (for sleeping outside when temperatures drop to ~0C). But it went on to say that most people could start to adapt this way ... but it took over 14 days in the cold.
That sounds like the same change. Another really simple adaptation is to cut down blood supply to the limbs, another is "goose bumps. I know goose bumps are created by small muscles, I presume there are muscles that construct the blood to the limbs, and I suppose like all muscles they can get flabby if not exercised????People continually living in cold temps have the "brown fat" mechanism of heat generation, it works with out shivering. I remember reading (From: "Life in the extreme" I think) that the first adaptation takes about two weeks but one tends to lose that fast when returning to more normal temps.
Scenario: You were on a stag/hen do and the next thing you know: you wake up naked in the middle of nowhere, the sun is getting low. What do you do? Priorities?
Details: it's early summer in what looks like Scotland. You're on a hillock giving good views many miles to the mountains all around except toward the sun where the horizon dips. There is no sign of any roads, fences or man-made shelters, just a few deer on the hills. From the hillock it is 200m down grassy patches of grey scree to the flattish valley bottom where the small river runs into a mixed species wood (looks like small withered oak, birch, willow, occasional pine & Scots Pine). Peering into the sun you see the wood fills the valley bottom as far as it can be seen. Upstream are patches of grass, heather, bog and bracken. You estimate two hours till sunset, three perhaps four till pitch black. The weather is dry, mild with patches of sunshine, but being naked on the hillock you are noticing the wind and already feeling cold.
The last thing you remember of your stag/Hen do, is boasting to your extremely rich friend that you could survive anywhere.
Whatever this text adventure will throw at me down the road -I will not start a fight with the Dwarf.
It is like the old joke 'how do you know if someone is a vegan?'That’s very similar to the strategy: ‘start discussing the benefits of a more plant based diet and someone will soon appear to tell you that you are wrong’…
If I only deciphered this correctly: I have a faint recollection that fitness level and cold tolerance are not connected in any meaningful way.Anyone know the effects of fitness levels on coping with temperatures not conducive to a naked humans welfare?
Depends very much on the terrain but I guess that probably holds more often than not. On the other hand if starting naked my main problem would be to find terrain that I can walk bare footed, lawn preferred, fine sand next.Kephart advised not following streams/rivers as you would have to swim across/wade through tributaries and even the main flow itself. He advised walking the ridges as it is often easier ground and has more visibility of terrain.
I think coping with cold has an element of being used to it. The first time you take a swim whitewater kayaking (an activity usually done in the colder and wetter months of the year in the UK) you usually panic with the cold. Sooner or later you stop that initial panic, then eventually you learn a bombproof roll or two and rarely take the swim.
Similarly I've had winter seasons in the lakeland fells, back when we had winters, where I've felt cold and ones I've felt OK. All while doing the same things with the same kit. Ime letting a little weight gain for winter kayaking season helped too, but I think when I was the fittest I also coped better with heat and cold.
Anyone know the effects of fitness levels on coping with temperatures not conducive to a naked humans welfare?
This is worth a listen if you are interested in cold water shock:
Cold Water Paddling – with Professor Mike Tipton MBE
<p><strong>In this episode, the University of Portsmouth's Professor Mike Tipton, a world leader in extreme environmental physiology talks about the eff...castbox.fm