Bad ass, stupid, or both?
Bad ass, stupid, or both?
Sherpas, a highlander population living in Khumbu region of Nepal, are well known for their superior climbing ability in Himalayas. However, the genetic basis of their adaptation to high‐altitude environments remains elusive. We collected DNA ...
It’s a bit more than just acclimatized to the conditions it’s genetics.
www.frontiersin.org/journals/physiology/…/full
Sherpa is a subset of the Nepalese population on the Tibetian plateau that has developed over 30,000 years. During that time lots of adaptations to higher altitudes have developed. Given that the plateau averages 4500m high (approx 15,000") is a pretty strong selection pressure environment.
Clearly not an issue
He is skilled
Gusts can be absurd, but avg windspeed is 50 mph / 80 kph.
I’ve sparked up in that level of wind before, multiple times, with a zippo, a good decade or so of being a chronic smoker’ll teach you how to do that.
Granted… your footing is probably just a teensy bit more of a thing you’re gonna have to be aware of, hahaha!
I’ve read a story where a guy survived CO poisoning and the medical staff said that he most likely survived that long cause he smoked like a chimney and his body was used to it.
Used it to defend my smoking habit a couple of times. No idea if it’s true tho.
Yeah…it doesn’t work like that.
I used to skydive, which takes you up to ~15,000ft.
Most normal people don’t get hypoxic untill your above ~12,000ft for 15-20min. Some of the smokers used to get hypoxic going through 8,000ft. Scary shit.
Generally speaking you want people to not be hypoxic when they are jumping out of aircraft.
Being hypoxic means your brain doesn’t work at the right speed (amoung other things), which can be an issue when your falling to the earth at terminal velocity.
I’m aware.
The elevations I’m talking about are related to people becoming hypoxic when not on supplemental oxygen.
At around ~10-12,000ft the partial pressure of oxygen is low enough that if your not used to it, you can become hypoxic. O2 @ ~20%
If you are on supplimental oxygen (which if you are climbing Everest, you are), in the “death zone” even if your are on 100% supplemental oxygen, the partial pressure is low enough that you can become hypoxic. 02 @ 100%
In both cases, if your lungs don’t work good (read; if you smoke), you’ll become hypoxic at lower levels.
You and other skydivers don’t LIVE at altitudes the Sherpas do. That’s the difference.
Just like the Bajau who’ve evolved to hold their breaths for 10mins and freedive to 50m regularly.
Pretty sure you guys are onto it, believe it is theorised to related to Denisovan genes
“Denisovans, an extinct hominin species, possessed genetic adaptations that helped them thrive in high-altitude environments, particularly in Siberia and potentially the Tibetan Plateau. A key example is their version of the EPAS1 gene, which is crucial for oxygen regulation in low-oxygen conditions and is also found in modern Tibetans, enabling them to live comfortably at high elevations without the negative side effects experienced by other populations according to a study published in Nature. This suggests that Denisovans interbred with humans, and their genetic contributions facilitated the adaptation of some human populations, like Tibetans, to high altitudes.”
Admixture with other hominin species helped humans to adapt to high-altitude environments; the EPAS1 gene in Tibetan individuals has an unusual haplotype structure that probably resulted from introgression of DNA from Denisovan or Denisovan-related individuals into humans, and this haplotype is only found in Denisovans and Tibetans, and at low frequency among Han Chinese.
I smoked so much from 14 to 20 it was crazy. Especially from 18 to 20. I had a job where i was bored and i would just smoke all day. I eventually quit when i was 26, and learned that i don’t really have an addictive personality, or i necer really liked smoking that much, whatever. I just stopped buying cigarettes and never touched one again.
But seeing my sister getting back to smoking after she quit when she was pregnant for about 5 years is soul crushing. She quit like 10 times in her life and will probably die smoking.
It’s weird how the perception of coolness plays a big part in starting up. I smoked for ten years, and teenage coolness was only half of it. The other half was the brief burst of euphoria it would give us every time we lit up, though that did subside after a few months of regular use.
I find the habit disgusting now, and I can’t help but judge smokers as being a little trashy now whenever I see it. But I remember what it was like to be dependent on them, and I definitely remember that false sense of rogue-like coolness I felt whenever I was walking down the street taking a drag on one.
I was able to get off of them fairly easy by switching to a low concentration e-liquid/vape for about a year or two, and then going cold turkey from there. I didn’t even get cravings. Just found myself reaching for my pocket every time I took a piss for a couple of weeks.
Now I just hope my daughter never starts.