Most people know it as "Resting Bitch Face" (RBF) or "Bitchy Resting Face," but I prefer the less derogatory "Angry Resting Face." Angry, sad, pissed off, irked, annoyed, bored: there are lots of different emotions that someone's natural resting face can give off unintentionally. Unfortunately, this condition usually effects women. (Kayne West, however, is a good example of RBF on men.)RBF is a term that has only been around since 2013, but it seems to perfectly summarize the neutral state of someone's face. Scientists have studied this phenomenon amongst celebrities with computer analyses, and what they found explains why RBF is an actual thing that can be quantified.