4 ms·

This is why people who spend even medium amounts of time in space are so crippled when they return. For any length of stay > 4 months their return home workout

This is why people who spend even medium amounts of time in space are so crippled when they return. For any length of stay > 4 months their return home workouts are insane like 2+ hours per day.

inglor_cz 2y ago
This sort-of indicates that once someone goes, say, to the Moon, and stays there for five years or so, they might not be able to come back on Earth at all, or need extremely long adaptation. The difference between 0.16G and 1G would be massive. Any deployment of people to the Moon will have to take this into account. And kids born and grown in lunar gravity may not be able to come to Earth under any circumstances.
- tsimionescu 2y ago
  It should be noted that it's not even sure that people could survive with such low gravity for a truly long time, or at least thrive. It could be that various parts of the body get weakened to a point that is even dangerous in the low gravity conditions (for example, you might find that you get a bone fissure in your leg every time you bump into the bed corner). Also, it's not at all clear that people could procreate and (especially) have a normal pregnancy in very low g conditions. We have nowhere near the kind of understanding of the gestational process that could allow us to know for sure before trying it out.
  - TeMPOraL 2y ago
    I guess the corollary here is that if it turns out some people could survive and procreate living in low-g, and some of their children could do the same, then the problem will sort itself out in couple generations :).
    - Schiendelman 2y ago
      Kind of. The problem thete is that most of the cost of your space program becomes: - palliative care for astronauts you spent millions of dollars training and billions of dollars sending to space. - childcare for their kids before they're useful.
    - drysine 2y ago
      Sabe, beratna. Beltalowda!
- Denote6737 2y ago
  Like the belters in The Expanse.
- 6510 2y ago
  People going back to 52C (125F) after a few years cant deal with it either. I don't know if the same goes for -30C (-86F) but I imagine it wouldn't feel usual.
Someone 2y ago
They’re used to that, as they do that while in space, too. https://www.nasa.gov/humans-in-space/counteracting-bone-and-muscle-loss-in-microgravity/ https://www.nasa.gov/humans-in-space/counteracting-bone-and-...: “Each astronaut aboard the space station engages the muscles, bones, and other connective tissues that comprise their musculoskeletal systems using Earth-like exercise regimens. Crews exercise for an average of two hours a day.”

This is why people who spend even medium amounts of time in space are so crippled when they return. For any length of stay > 4 months their return home workouts are insane like 2+ hours per day.

inglor_cz 2y ago

This sort-of indicates that once someone goes, say, to the Moon, and stays there for five years or so, they might not be able to come back on Earth at all, or need extremely long adaptation. The difference between 0.16G and 1G would be massive. Any deployment of people to the Moon will have to take this into account. And kids born and grown in lunar gravity may not be able to come to Earth under any circumstances.

tsimionescu 2y ago
It should be noted that it's not even sure that people could survive with such low gravity for a truly long time, or at least thrive. It could be that various parts of the body get weakened to a point that is even dangerous in the low gravity conditions (for example, you might find that you get a bone fissure in your leg every time you bump into the bed corner). Also, it's not at all clear that people could procreate and (especially) have a normal pregnancy in very low g conditions. We have nowhere near the kind of understanding of the gestational process that could allow us to know for sure before trying it out.
- TeMPOraL 2y ago
  I guess the corollary here is that if it turns out some people could survive and procreate living in low-g, and some of their children could do the same, then the problem will sort itself out in couple generations :).
  - Schiendelman 2y ago
    Kind of. The problem thete is that most of the cost of your space program becomes: - palliative care for astronauts you spent millions of dollars training and billions of dollars sending to space. - childcare for their kids before they're useful.
  - drysine 2y ago
    Sabe, beratna. Beltalowda!
Denote6737 2y ago
Like the belters in The Expanse.
6510 2y ago
People going back to 52C (125F) after a few years cant deal with it either. I don't know if the same goes for -30C (-86F) but I imagine it wouldn't feel usual.

Someone 2y ago

They’re used to that, as they do that while in space, too. https://www.nasa.gov/humans-in-space/counteracting-bone-and-muscle-loss-in-microgravity/ https://www.nasa.gov/humans-in-space/counteracting-bone-and-...: “Each astronaut aboard the space station engages the muscles, bones, and other connective tissues that comprise their musculoskeletal systems using Earth-like exercise regimens. Crews exercise for an average of two hours a day.”