Interesting; when my wife and I both get sick we always note this recurring theme where I get this intense but brief bout of illness, and her's are more drawn out and prolonged but significantly less intense. Timewise we're talking about 1-3 day sickness for me and 1-2wk sickness on her end. That recurring observation has caused a bunch of speculation between us about evolutionary protections and stuff where perhaps the man being down has more immediate risks that can threaten the family in the protecting role or something like that. Not sure entirely but fun to imagine about.