This excerpt from "Rewire" by Nicole Vignola provides an overview of neuroplasticity and how it can be used to rewire negative thought patterns and improve mental health. Vignola uses a neuroscientific perspective to explain how our brains are capable of change and provides tools to help readers manage stress, anxiety, grief, and other negative emotions. She emphasizes the importance of self-awareness, self-compassion, and building self-trust, and encourages readers to break free from the narratives that limit their potential. The text also discusses the role of exercise, sleep, and mindfulness in improving brain health and promoting positive change.