Excuse me, but they're called Matt Groening and David X Cohen. I'd rather you reference Futurama instead, because The Simpsons is zombified and not how they deserve to be remembered.
Downvoted for annoying title "touch grass". I've never been told "touch grass" in a single scenario that made sense and not to mention I likely spend more time outdoors than anyone who has wrote that to me.
Also they probably got that worm by touching stuff, the right should be "wash your hands" or if you're cheery "lávese las manos" with a tiny picture of wizard Steve on it somewhere.
I think the earliest instance of "brain worms" I remember was from an episode of Invader Zim in 2001. Zim is offended at the concept of paying to ride a filthy, poorly maintained bus and shouts at the driver "Have you the brain worms?!"