MLP (obviously), meaningful discussions, sci-fi, fantasy, cars, video games, music, art, fashion, occult sciences (theory), popular science, armchair psychology, and a long list of other interests, mostly from theoretical perspective.
My aunt had white hair since she was, like, 40? And I had my first white around 19, so it's a safe bet to assume it's family related. Also, grey/white hair done right can be pretty badass. Atleast it's not hair loss!