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Pattern of brain damage is pervasive in Navy SEALs who died by suicide

nytimes.com

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Re: Pattern of brain damage is pervasive in Navy SEALs who died by suicide

#381

Post by sobriquet9 »

rottenapple wrote: post #331
sobriquet9 wrote: post #313

Earlier quoted context omitted.

Guns are kinetic energy weapons, not momentum weapons. It’s the kinetic energy that matters. Momentum is conserved, recoil momentum is the same as bullet momentum, yet recoil does not kill the shooter.

It's more the area of the bullet that matters. A small bullet or a thin needle require much less momentum/energy to penetrate a body than a big object.

If you place a bullet between rifle stock and the shoulder, then fire the rifle, it’s going to be mildly unpleasant, but the bullet won’t penetrate the skin, let alone kill the shooter.

Re: Pattern of brain damage is pervasive in Navy SEALs who died by suicide

#382

Post by sofixa »

coldtea wrote: post #348
sofixa wrote: post #301

Earlier quoted context omitted.

> You don't need laws or campaigns, it happens naturally, due to the increased sexual selection availability Again, do you have any examples of this actually happening in the real world? It naturally happens that men become more desirable because there's less of them, but is there any actual case where it became widespread for men to get multiple different women pregnant to repopulate the country? Not to mention, eve…

> Again, do you have any examples of this actually happening in the real world? You were given examples already: "Using unique archival data, the results indicate that male scarcity led to lower rates of marriage and fertility, higher nonmarital births, and reduced bargaining power within marriage for women most affected by war deaths" You can read about similar post-war periods with similar problems and outcomes in…

> You were given examples already: "Using unique archival data, the results indicate that male scarcity led to lower rates of marriage and fertility, higher nonmarital births, and reduced bargaining power within marriage for women most affected by war deaths"

The fertility rate (amount of kids per woman) dropped, so no.

> policies that promoted nonmarital births

Nonmarital births does not mean that men were getting multiple different women pregnant at the same time.

Re: Pattern of brain damage is pervasive in Navy SEALs who died by suicide

#383

Post by kragen »

2-3-7-43-1807 wrote: post #371
kragen wrote: post #342

Earlier quoted context omitted.

10.1096/fj.201701031R

"Collectively, these observations suggest that increased cerebral oxidative stress following prolonged apnea in trained divers may reflect a functional physiologic response, rather than a purely maladaptive phenomenon." so, this paper neither is relevant for seal training nor does it claim any harm caused by breath holding, based on the Abstract section.

yeah, maybe this paper isn't the most relevant source. hopefully you can find a better one if learning about this is important to you, i suggest reading the papers it references, or related papers in google scholar. i'm super not motivated to help you right now because you're acting like if you're wrong about something it's my responsibility to convince you

this kind of bullshit is really frustrating. my comment already explained that the kind of brain damage caused by apnea isn't the kind the pathology reports found, so it absolutely doesn't matter whether seal training involves apnea or not, or exactly what conditions are needed for apnea-induced brain damage, unless you have some strong reason for believing that the news article's reporting of the pathology is wrong

so actually it's fine with me for you to continue being wrong if you want. i don't have anything to sell you

Re: Pattern of brain damage is pervasive in Navy SEALs who died by suicide

#384

Post by [deleted] »

_heimdall wrote: post #334
zxexz wrote: post #246

Earlier quoted context omitted.

Huh. I feel like that almost daily nowadays. Maybe I should grab some tinfoil. Unless it's coming from inside the head...

If you believe someone may be pointing a microwave weapon at you, please do not wrap your head in foil like a baked potato.

[deleted]

Re: Pattern of brain damage is pervasive in Navy SEALs who died by suicide

#385

Post by Retric »

sobriquet9 wrote: post #379
zorked wrote: post #358

Earlier quoted context omitted.

n=1

One counterexample may be sufficient to disprove a hypothesis. If you claim a certain quadratic equation has no roots and I give you one root, you can’t say “n=1”.

It is a strong datapoint, but he may be using meaningfully different weapons / ammo compared to seals.

Math avoids this kind of uncertainty.

Re: Pattern of brain damage is pervasive in Navy SEALs who died by suicide

#386

Post by hwillis »

nabla9 wrote: post #279
kragen wrote: post #217

> Much of what is categorized as post-traumatic stress disorder may actually be caused by repeated exposure to blasts. that is to say, it's actually shell shock? as in, actual physical shock from actual shells? george carlin would be so proud https://www.youtube.com/watch?v=vuEQixrBKCc the article also mentions that they'd all trained extensively in diving deep underwater, which is also known to cause brain damage, b…

.50 cal sniper rifles and shoulder launched weapons like Carl Gustaf, the M72 LAW or the AT4 can. Firing a rifle may or may not cause shock waves that are strong enough. If you have been firing a whole day you definitely feel funny in the head.

> .50 cal sniper rifles and shoulder launched weapons like Carl Gustaf, the M72 LAW or the AT4 can [produce shock waves that induce cavitation in brain tissue]

The US military, and militaries in general, do not use weapons like the M82/M107 as sniper rifles very often. The M82/M107 in particular has a recoiling barrel (the entire 2.5' barrel slides back when shooting) and isn't a very precise weapon.

They're used for blowing up ordinance or disabling light vehicles. They are sometimes used for hostage situations because they're more likely to immediately disable someone.

The US military has pretty rarely used shoulder fired weapons, since they very rarely have to worry about tanks or aircraft. SEALs in particular wouldn't be doing that.

Re: Pattern of brain damage is pervasive in Navy SEALs who died by suicide

#387

Post by tux3 »

sobriquet9 wrote: post #379
zorked wrote: post #358

Earlier quoted context omitted.

n=1

One counterexample may be sufficient to disprove a hypothesis. If you claim a certain quadratic equation has no roots and I give you one root, you can’t say “n=1”.

Claims about populations in medicine are not very much like math theorems. There are too many exceptions for a single case study to settle the question.

Re: Pattern of brain damage is pervasive in Navy SEALs who died by suicide

#388

Post by lye »

sofixa wrote: post #320
sobriquet9 wrote: post #319

Earlier quoted context omitted.

Fertility rates do not decrease after a war, which means fewer remaining men get the same number of women pregnant.

From a sibling comment, in Russia fertility rates did indeed decrease: https://direct.mit.edu/rest/article-abstract/99/2/229/58403/...

I am not even in Russia, but that war pulled so much out of every region, including mine (which did not see fighting directly, but provided many conscripts and resources), that after the war there simply wasn't much to eat or too many people to work the fields. My grandparents first ate caramel candy in 1952, IIRC. Good luck increasing your fertility rates in these conditions.

Re: Pattern of brain damage is pervasive in Navy SEALs who died by suicide

#389

Post by cjbgkagh »

sofixa wrote: post #218
cjbgkagh wrote: post #156

Earlier quoted context omitted.

Not sure why you are getting downvoted. I am aghast with the press-ganging going on in Ukraine. I think if Ukraine can’t motivate volunteers to fight then they must surrender. I get that we (the west) wouldn’t like that but they’re taking volunteers so anyone who wants to fight that war is free to do so. Too many people wanting other people to fight their wars for them. I don’t even like my country, the thought of be…

It's literally a question of life or death. If Ukraine surrenders, that could very well be the end of the country and ethnic/cultural identity. Look up what happens to Ukrainians captured by the Russian army - rape (irrespective of gender), torture, starvation, daily beatings, etc. Russia has kidnapped hundreds of thousands of kids too. Surrender is not an option. Unfortunately, everyone (men and women included) must…

Are you in Ukraine doing your duty? If you are not Ukrainian they do take volunteers.

Surrender is an option, none of those things is worse than death. I would not make that trade. If the Ukrainian men want to stop it they can still volunteer, so can anyone else. And it looks like they will lose the war anyway, so they’ll have to surrender anyway except now after a huge amount of death and destruction. Ukraine is heavily indebted and the belief that some Marshal plan reconstruction would enable them to pay that off is unrealistic.

Re: Pattern of brain damage is pervasive in Navy SEALs who died by suicide

#390

Post by josefresco »

somenameforme wrote: post #352
baxtr wrote: post #242

Earlier quoted context omitted.

I wonder if the Havanna syndrome is somehow correlated with this as well

There was a rather scathing study on it here. [1] In short the government's own internal investigations realized the obvious answer, a mass hysteria event, was the most likely culprit. But politics got involved and so then they classified reports mentioning this, and released reports suggestive of foreign adversaries attacking people with some mystery weapon, even though their own internal reports put the chances of…

Then there was this: "Unraveling Havana Syndrome: New evidence links the GRU's assassination Unit 29155 to mysterious attacks on U.S. officials and their families"

https://theins.ru/en/politics/270425

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