I know very little about Jane's Thor arc in the comments, but I do seem to recall it being mentioned there that using Mjolnir was an aspect interfering with her normal treatment. Was there a specific explanation for that, as it's a point the film mentions but just sort of glosses over IMO?
IIRC, the transformation into Thor flushed the chemo out of Jane's human system, so she could be healthy and invulnerable as Thor at the cost of her cancer running unchecked when she turned back into Jane Foster.
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