Blood ultimately comes from your bones. Microtubule stress is known to be important to the hematopoietic process. The microtuble-binding drug plinabulin, for ex

Blood ultimately comes from your bones. Microtubule stress is known to be important to the hematopoietic process. The microtuble-binding drug plinabulin, for example, binds in such a way that helps ameliorate neutropenia. I would guess that these problems would be solved by artificial gravity. Another factor might be increased levels of background radiation, but I would guess that is already accounted for.