👉 The Happiness Fluid is a conceptual model developed by psychologist Barbara Fredrickson that describes happiness as a dynamic, multi-dimensional construct rather than a static state. It posits that happiness exists on a continuum and can be influenced by various factors, including physical sensations, emotions, thoughts, and social interactions. The model introduces the idea of "broaden-and-build" emotions, suggesting that positive emotions like joy, interest, and contentment broaden our thinking and actions, helping us build resources such as social connections, creativity, and resilience. This fluidity means that happiness is not just about feeling good but also about the capacity to experience and express a wide range of positive emotions, which can enhance our overall well-being and adaptability in life.