Positive emotions flood our brains with dopamine and serotonin, chemicals that not only make us feel good, but dial up the learning centers of our brains to higher levels. They help us organize new information, keep that information in the brain longer, and retrieve it faster later on. And they enable us to make and sustain more neural connections, which allows us to think more quickly and creatively, become more skilled at complex analysis and problem solving, and see and invent new ways of doing things.