I don’t think the radiation should be too big of a problem, they are in a very low earth orbit, well inside of the Earth’s magnetosphere. Not to say there are no health risks, they lose a lot of bone and muscle mass, but radiation shouldn’t be a big concern
Also health problems increase when in space longer. Specifically drastic increased risk of cancer due to lack of sufficient radiation shielding.
I don’t think the radiation should be too big of a problem, they are in a very low earth orbit, well inside of the Earth’s magnetosphere. Not to say there are no health risks, they lose a lot of bone and muscle mass, but radiation shouldn’t be a big concern