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Sep 21, 2015 at 18:05 comment added Francine DeGrood Taylor ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19930003131.pdf
Sep 21, 2015 at 11:17 comment added Youstay Igo I was aware that the immune system underwent gradual deterioration, but I didn't know a weak gravitational medium also had measured effects on bone mass and muscles.
Sep 21, 2015 at 10:03 comment added jwenting it's more than likely, it's been observed during long duration space missions on board space stations.
Sep 21, 2015 at 5:49 history answered Youstay Igo CC BY-SA 3.0