this post was submitted on 24 Jun 2025
853 points (98.9% liked)

Lemmy Shitpost

32610 readers
3815 users here now

Welcome to Lemmy Shitpost. Here you can shitpost to your hearts content.

Anything and everything goes. Memes, Jokes, Vents and Banter. Though we still have to comply with lemmy.world instance rules. So behave!


Rules:

1. Be Respectful


Refrain from using harmful language pertaining to a protected characteristic: e.g. race, gender, sexuality, disability or religion.

Refrain from being argumentative when responding or commenting to posts/replies. Personal attacks are not welcome here.

...


2. No Illegal Content


Content that violates the law. Any post/comment found to be in breach of common law will be removed and given to the authorities if required.

That means:

-No promoting violence/threats against any individuals

-No CSA content or Revenge Porn

-No sharing private/personal information (Doxxing)

...


3. No Spam


Posting the same post, no matter the intent is against the rules.

-If you have posted content, please refrain from re-posting said content within this community.

-Do not spam posts with intent to harass, annoy, bully, advertise, scam or harm this community.

-No posting Scams/Advertisements/Phishing Links/IP Grabbers

-No Bots, Bots will be banned from the community.

...


4. No Porn/ExplicitContent


-Do not post explicit content. Lemmy.World is not the instance for NSFW content.

-Do not post Gore or Shock Content.

...


5. No Enciting Harassment,Brigading, Doxxing or Witch Hunts


-Do not Brigade other Communities

-No calls to action against other communities/users within Lemmy or outside of Lemmy.

-No Witch Hunts against users/communities.

-No content that harasses members within or outside of the community.

...


6. NSFW should be behind NSFW tags.


-Content that is NSFW should be behind NSFW tags.

-Content that might be distressing should be kept behind NSFW tags.

...

If you see content that is a breach of the rules, please flag and report the comment and a moderator will take action where they can.


Also check out:

Partnered Communities:

1.Memes

2.Lemmy Review

3.Mildly Infuriating

4.Lemmy Be Wholesome

5.No Stupid Questions

6.You Should Know

7.Comedy Heaven

8.Credible Defense

9.Ten Forward

10.LinuxMemes (Linux themed memes)


Reach out to

All communities included on the sidebar are to be made in compliance with the instance rules. Striker

founded 2 years ago
MODERATORS
 
top 50 comments
sorted by: hot top controversial new old
[–] mavu@discuss.tchncs.de 9 points 12 hours ago (2 children)

Wel, every single human who breathes Oxygen dies eventually. Just saying.

[–] Dasus@lemmy.world 1 points 1 hour ago (1 children)

It's a decent hypothesis, but you'll never gather enough data to convince the naysayers.

"The results just aren't in yet, look at all the people alive"

[–] mavu@discuss.tchncs.de 1 points 38 minutes ago

fair. I guess only history remains to prove me right.

[–] pocker_machine@lemmy.world 2 points 11 hours ago

So to not die, we just need to stop breathing !

[–] Meron35@lemmy.world 9 points 12 hours ago (1 children)

Pure oxygen is actually toxic for humans, leading to hyperoxia. People who breath pure oxygen such as scuba divers need specific training.

Oxygen toxicity - Wikipedia - https://en.m.wikipedia.org/wiki/Oxygen_toxicity

[–] Shayeta@feddit.org 2 points 26 minutes ago* (last edited 25 minutes ago)

hyper - meaning high,

ox - meaning the animal Ox,

-ia - meaning presence in blood.

High Ox presence in blood. You can imagine how dangerous that is.

[–] saigot@lemmy.ca 7 points 15 hours ago

I always think this when I see those annoying posts about diet coke dissolving screws.

[–] ILikeBoobies@lemmy.ca 8 points 17 hours ago* (last edited 17 hours ago)

Oxygen will burn your lungs, that’s why we dilute it with nitrogen

[–] CptOblivius@lemmy.world 11 points 20 hours ago

Our lives are a balance between needing oxygen and preventing oxidation damage. We have several enzymes that constantly reduce radicals and chemicals caused by oxidation. So yes oxygen is continuously damaging us. And will eventually win.

[–] roguetrick@lemmy.world 9 points 19 hours ago

Life is a game of burning but trying to do it slowly.

[–] AnarchistArtificer@slrpnk.net 19 points 23 hours ago

100% of people exposed to oxygen die.

[–] Joeyowlhouse@lemmy.wtf 18 points 1 day ago (2 children)

Wait until you read about Dihydrogen Monoxide. Everyone who has ever been exposed to it has died.

[–] xav@programming.dev 5 points 21 hours ago (1 children)

There's a whole website dedicated to raising awareness of its danger : https://www.dhmo.org/

[–] Joeyowlhouse@lemmy.wtf 1 points 15 hours ago

The funny (and scary) thing is how many conspiracy theorists will not get the joke or realize it's water.

[–] icelimit@lemmy.ml 5 points 21 hours ago* (last edited 21 hours ago)

Wait till you hear about this ancient roman curse called gravity.

[–] DeathByBigSad@sh.itjust.works 5 points 18 hours ago

Ban the wOkE government chemical Dihydrogen monoxide from our water supply! BAN DHMO, LIBERATE AMERICAN WATER FREEDOM! 🇺🇸🦅👊🇺🇲🔥🦅🇺🇸 USA! USA!

[–] MonkderVierte@lemmy.zip 22 points 1 day ago (1 children)

I mean, oxygen is the most aggressive oxidator, to the point we named the process after it.

[–] burntbacon@discuss.tchncs.de 3 points 16 hours ago (1 children)

F you.

spoilerBrought to you by the highest oxidation gang.

[–] roguetrick@lemmy.world 3 points 16 hours ago* (last edited 16 hours ago)

And if you meet flourine out on the wild, you will be F'ed. It will bind itself to you without your consent or caring about things like essential biological processes for life.

[–] KingCake_Baby@lemmy.world 8 points 23 hours ago

70-80+ years exposure to this stuff is lethal

[–] pewpew@feddit.it 29 points 1 day ago (2 children)

Imagine what it can do to software

[–] mariusafa@lemmy.sdf.org 2 points 16 hours ago

It can document it!

[–] NorthWestWind@lemmy.world 8 points 1 day ago

Those damn electrons!

[–] zr0@lemmy.dbzer0.com 62 points 1 day ago (2 children)
[–] ouRKaoS@lemmy.today 18 points 1 day ago (2 children)
[–] Efflixi@lemmy.world 8 points 1 day ago* (last edited 1 day ago) (1 children)

There are quite a few sci-fi stories and short stories built on a similar concept. One of my favorites is an alien ship lands on a random farm in the US and (leaving a lot of details out, read the book!) it comes to light that the aliens normally live at insanely hot temperatures like 900F (480C) and consider Earth an "Ice World" (that's also the name of the book). Anyway, one of the catches in the book is that farmer figures out the alien wants to trade (again skipping a lot of details) but all he has on him that he can give up is a cigarette (the farmer doesn't know it's super hot inside the ship). He does the trade and we later find out that most of the galaxy is INSANELY vulnerable to being 100% completely utterly addicted to nicotine. When the alien took in the cigarette it instantly vaporized and sent the nicotine into the air and they breathed it and became instantly addicted worse than any opiod addiction IRL.

[–] Pieisawesome@lemmy.dbzer0.com 1 points 12 hours ago

You didn’t mention the book name, so how are we to read it?

load more comments (1 replies)
[–] NotSteve_@lemmy.ca 5 points 1 day ago (1 children)

Unrelated but the bottom navbar in that screenshot makes me long for the Alien Blue days of Reddit. I also just miss that iOS design (along with the OS X Mavericks design)

[–] anomnom@sh.itjust.works 1 points 2 hours ago

Dude, I just had to use an old Mac with OS10.11 on it (I know not that old) to recover a laptop in target disk mode.

It still has the widgets!

I miss the widgets.

[–] Bosht@lemmy.world 22 points 1 day ago (3 children)

I've currently been reducing my oxygen intake. My wife keeps telling me it's impossible and my doc says I'll supposedly die, but they're just hating on my progress.

[–] Knock_Knock_Lemmy_In@lemmy.world 9 points 1 day ago (1 children)

This is a valid athletic technique. Usually achieved by training at altitude.

[–] AnarchistArtificer@slrpnk.net 3 points 23 hours ago* (last edited 23 hours ago) (1 children)

Doesn't it only work if you then return to a lower altitude? I wonder how long the benefits last for.

Now that I think about it, I don't actually know how this even works. Well I know what I'm going to go read about next.

Edit: My findings:

  • At high altitude, cardiac output (the overall rate of blood pumped by the heart) increases, largely due to increased heart rate. This increased heart rate reduces as one acclimatises to high altitude (though I'm unsure of if it returns to baseline. It appears to be complex, and at least somewhat differing person by person. These individual differences may explain why some people experience health problems at high altitude, beyond the initial ill feelings caused from first arriving somewhere that's high altitude)

  • The stroke volume (volume of blood pumped by each beat of the heart) is lower at high altitudes. This does improve as one acclimatises, but not entirely. This seems to be affected by blood pressure stuff, such as reduced plasma volume at high altitude. It seems to be complex enough that we don't fully understand how the various regulatory stuff works.

  • Most of the acclimatisation occurs by increasing the number of red blood cells in the blood. The hormone erythropoietin, which usually exists at a low level in non-hypoxic conditions, stimulates the production of new red blood cells. At high altitude, the level of erythropoietin in the blood rises to around 1000 times its baseline level. Increased production of red blood cells happens for a few weeks, by which point, there is enough to make up for lower oxygen levels at high altitude.

  • When returning to low altitude, it appears that the changes back to the baseline happen over a similar timeline.

Tangential fun fact: a red blood cell has a lifetime of around 4 months. A single red blood cell travels around 400 miles before it is old enough to be recycled by the body.

[–] LifeInMultipleChoice@lemmy.world 2 points 23 hours ago

Its also said that smokers are used to having less oxygen intake so if you throw a smoker and a non smoker on a mountain for a night, the smoker is less likely to get altitude sickness. Long term staying at altitude they'll no longer have the advantage.

load more comments (2 replies)
[–] Winter_Oven@piefed.social 40 points 1 day ago (10 children)

On the topic, as oxidation is a pretty prevalent negative side effect of living, our body has multiple mechanisms to deal with it, no? So my question is: where do the "antioxidants" that we can eat come into the picture here? Are they like preventing oxidation from even occurring, or are they like the shields that our cells use to protect themselves from oxidative stress, or what have you?

[–] Ledericas@lemm.ee 2 points 11 hours ago* (last edited 11 hours ago)

we have enzymes to prevent oxygen radicals from forming. such as Superoxide dismutase, which is present in nearly every cell in our body, and we have 3 different version. most oxygen dependant organisms have similar enzymes.

another fun fact, our immune system can produce the same superoxide as a defense against bacterial infections, reactive oxygen species including radical oxygen. but bacteria can produce the enzyme to neutralize that too.

i think the dietary source, is somewhat alittle homeopathic/ pseudosciency, because our stomach acid would probably neutralize any beneficial effect before we can absorb it. of course there are some foods that provide nutrional benefit to certain cells(if they a chemical compound). but they dont have like anti-oxidant effect of something like superoxide dismutase. also because of this effect, people with chronic illness as a result of the dysfunction.

[–] liquorisquicker@sh.itjust.works 18 points 1 day ago* (last edited 1 day ago) (2 children)

Oxidation is the loss of electrons, whereas reduction is the gain of electrons. The mnemonic is OIL RIG: Oxidation Is Loss, Reduction Is Gain.

Oxygen is highly electronegative (second only to fluorine), meaning that it will strongly attract electrons. So, oxygen is good at oxidizing things. It's good at stealing their electrons. (When the oxygen takes the electron, the oxygen becomes reduced!)

The reason that oxygen is so important in your body for respiration is because of its high electronegativity. It is used as the final electron acceptor in a chain of chemical reactions that are used to convert high energy molecules that you've eaten into different high energy molecules that your body can use.

Think of the analogy of a staircase and a ball. The ball is an electron and the stairs are energy states of different molecules along the metabolic pathway. As the ball goes down the stairs, the electron loses energy (which is usually converted to ATP or NADH). At the bottom of the stairs is oxygen, once the electron gets there, it doesn't have anymore potential energy to lose, unless maybe you have some fluorine around. The final, reduced state of oxygen in this pathway is carbon dioxide. It's no longer useful for respiration and thankfully can just be exhaled. How convenient!

An oxygen missing an electron (an oxygen radical) is highly reactive. This is not good. It'll just steal an electron from whatever molecule is nearby. That may be DNA or any other molecule that it's in your best interest to keep intact. Antioxidants are helpful as electron donors, neutralizing radicals before they do damage.

[–] jj4211@lemmy.world 1 points 1 hour ago

Ok, I'm going to make a new nutritional supplement: "oops! all electrons!"

antioxidants are our internal sacrificial anodes?

[–] olafurp@lemmy.world 6 points 1 day ago

Cell mechanisms cause oxidative stress in the body which can lead to inflammation and faster aging. Antioxidants provide the body with an easy way to neutralise the bi-products.

[–] peregrin5@lemm.ee 34 points 1 day ago* (last edited 1 day ago) (4 children)

Oxidation is how red blood cells collect oxygen to pass to the rest of the body. In fact it is iron in hemoglobin that "rusts" to collect the oxygen. You would die if your blood didn't "rust".

Antioxidants have nothing to do with this.

[–] rhombus@sh.itjust.works 1 points 22 hours ago (1 children)

The process you’re thinking of is oxygenation, not oxidation. Oxygenation is the binding of oxygen to other molecules, oxidation is the loss of electrons. When the iron in hemoglobin oxidizes (from Fe2+ to Fe3+) it stops binding with oxygen, and if it oxidizes further (to Fe4+) it can start oxidizing other molecules in your body. Your body has enzymes to reduce the iron back to a reactive state, but antioxidants also play a role in reducing oxidized molecules.

[–] peregrin5@lemm.ee 2 points 21 hours ago

It's actually the opposite. When the oxygen binds to the iron it changes from Fe+2 to Fe+3 so the binding of oxygen to the iron in hemoglobin is an oxidation process. At that point it can't take more oxygen until it releases it in a reduction reaction.

The term "oxidation" is originally derived from reactions where a substance combines with oxygen but has since been generalized to any reaction where an electron is given up. So "oxidation" is the broader term and "oxygenation" is the specific oxidation reaction that results in binding oxygen.

load more comments (3 replies)
load more comments (6 replies)
[–] Maeve@midwest.social 14 points 1 day ago

Antioxidants exist.

Statistically speaking, for humans, breathing oxygen does eventually have a 100% fatality rate.

[–] SnotFlickerman@lemmy.blahaj.zone 26 points 1 day ago* (last edited 1 day ago) (3 children)

You think that's bad, wait until you hear about dihydrogen monoxide! It's in almost everything, even the water you drink and the air you breathe!

[–] son_named_bort@lemmy.world 3 points 1 day ago

Did you know that dihydrogen monoxide kills more people than any other liquid? And yet, the government does nothing to ban it. This deadly liquid could be anywhere, even in your home!

load more comments (2 replies)
[–] veni_vedi_veni@lemmy.world 19 points 1 day ago (1 children)

Don't forget, water is only one atom in it's molecular composition away from rocket fuel

load more comments (1 replies)
load more comments
view more: next ›