eli5 what would the effects be on someone who never left 500 elevation that traveled to 1000 elevation? would it mimic the bends? decompression illness? dementia?

Question

eli5 what would the effects be on someone who never left 500 elevation that traveled to 1000 elevation? would it mimic the bends? decompression illness? dementia?

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Answer 1

No, it would take a lot more elevation gain to have strong effects. If you go from 500 to 5000 you might feel out of breath and get a headache, maybe some mild flu-like feeling. But it’s pretty easy to adjust to that change. If you go from 500 to 9000 you will feel it more. But it still wouldn’t be decompression illness. You’d have to go from 500 to something like 25,000 to actually get that.