Discover how estrogen and dopamine work together to shape your mood, focus, and motivation throughout your menstrual cycle. In this expert-reviewed guide, we explore why dopamine is known as the “happy hormone,” how estrogen influences its production, and how syncing your work with your cycle can help you unlock flow, energy, and emotional balance. Plus, learn practical tips for supporting your brain chemistry across each phase of your cycle—backed by science and written for real life.