If you’ve been watching TV lately, it’s very likely that the incessant ads for an upcoming movie is rotting your brain. The promos for Lucy, the upcoming action movie starring Scarlett Johansson and Morgan Freeman, show that the movie is based on the premise of what would happen if humans used more than 10% of their brains.

Of course, that pseudo-scientific notion has been dismissed by the scientific community and anyone with half a brain (pun intended) for years. Unfortunately, many people still believe this. In fact, you use all of your brain in order to function.