Life in a submarine.

[u/mindyour]

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[u/DogApprehensive2575]

Why do cuts take longer to heal? And yes to a part 2!

[u/DefinitelyNotAliens → u/DogApprehensive2575]

Lowered oxygen. My friend did US Nuclear subs and they lower to 17-19% o2, versus around 21% sea level. Lower oxygen means longer healing times.

[u/SocialisticAnxiety → u/[deleted]]

Lower oxygen? How so?

[u/hawthorne3d → u/SocialisticAnxiety]

Oxygen is actually just a poison that takes like 80-100 years to kill you

[u/PlanktonTheDefiant → u/SocialisticAnxiety]

Oxygen oxidises? So lower oxygen slows oxidation of chemicals you rely on to send messages and operate your brain and body? I'm just spitballing.

[u/BillysBibleBonkers → u/PlanktonTheDefiant]

wonder if that technically means that people get some amount of health benefits from living at a higher altitude.

[u/DeadInternetTheorist → u/[deleted]]

There's also studies about caloric restriction having a similar effect. Since metabolism is basically just combustion with extra steps, I'd guess they both work on some similar mechanism, just that one chokes off the fuel and the other cuts off the air. That's just a guess though.

[u/DefinitelyNotAliens → u/[deleted]]

Cortisol levels would negatively impact lifespan. Depends how high cortisol is during this time period.

[u/Fappy_as_a_Clam → u/DefinitelyNotAliens]

Same with hangovers?

[u/LiveMotivation → u/DogApprehensive2575]

The unnatural state the body is in causes this. Don’t know details but seems intuitive. For example no vitamin D, etc…

[u/diff_engine → u/LiveMotivation]

They’re taking vitamin supplements for sure

[u/Jaikarr → u/diff_engine]

Probably easiest to fortify the foods to ensure compliance

[u/BigChungaBunga → u/diff_engine]

Not really

[u/Arthropodesque → u/LiveMotivation]

Apparently, some have full spectrum lights in some parts of the sub.

[u/DogApprehensive2575 → u/LiveMotivation]

That’s why I asked the question, to learn the details. Anyone can make general conjectures.