Re: Probably more than most people
Cold icy environments tend to dehydrate cell structures, and dessicated nuclei cause the DNA to fragment. There are only a few microrganisms that can repair this damage. One of them is D. Radiodurans, but even this species has a large fatality rate under these conditions. Understand that D.Radiodurans can only repair the damage after it is re-hydrated, and this is not expected to ever occur again on Mars. Mars has been boot-dry for eons.
