While Nords have an innate resistance to cold damage, they achieve this through the trade-off of never leveling Intelligence past a score of fifteen.

Joke and fake loading screens and screenshots from The Elder Scrolls IV: Oblivion, run by @ChrisOfTheDead.
General links and the actual Oblivion mod made from these jokes in my Carrd page:
While Nords have an innate resistance to cold damage, they achieve this through the trade-off of never leveling Intelligence past a score of fifteen.