This is caused by their rare appearance into the offline world, with insufficient exposure to UV light these otherwise healthy looking people develop a very pale face & body.
This is not to be used to describe albino's and red heads as their habits have nothing to do with their pale complexion.
Also not meant to describe un-brown people, stritly to describe extraordinarily pale folk.
Common side affects: over weight due to fast food & cheetos , ultra skinny due to refusing to get off the computer to even eat let alone excersise
Darwin: "Not much, worked on my computer tan"