triggers it. Our introvert brains release feel-good chemicals when we turn inward, focus on ideas, have meaningful conversations, and do work that matters to us. We’re motivated by internal rewards, such as the joy of an aha moment, the comfort of a deep connection, and the satisfaction of a job well done. If dopamine is caffeine, then acetylcholine is herbal tea. It’s calming and brings us into a more restful, peaceful state. Well-meaning extroverts may encourage us to “join the fun,” not realizing