Emotions neuroscientist Dr. Antonio Damasio has said that humans have about an 80% overlap of emotions and cognition. About 80% of our emotions blend cognition and feelings while 80% of our cognitive processing blends emotions into it. Our brain blends much, much more of our emotions with much more of our daily cognitive lives than earlier thought. (Accessed 7-16. http://www.sciencedirect.com/science/article/pii/S0149763405001053)