In addition to emotions, feelings, and moods, there are emotion-related personality traits. This feels like who we are, at our core—our predisposition to feel, think, and act in a particular way. We’re optimists or pessimists, we’re take-charge types or fatalists, we’re introverts or extroverts, we’re calm or hyper. To be sure, personality traits can change over time, but when they do, it happens gradually.

