[Summary] Rick Hanson's book, "Just One Thing"  offers a collection of practices designed to improve well-being and happiness through the application of neuroscience. Each chapter presents a simple, actionable practice, backed by scientific evidence, that aims to rewire the brain for positivity and well-being. The book emphasizes the importance of mindfulness, taking in the good, self-compassion, relaxation, and cultivating positive habits. The author utilizes various techniques, including recalling positive experiences, cultivating gratitude, and increasing mindfulness, to enhance the reader's ability to manage stress, cultivate emotional resilience, and live a more fulfilling life.