I actually would rate this between a 4 and a 5 as it had so many practical things I'd not read anywhere else. Through Tomaino's experiences in having been a nun and worked later with many Maryknoll sisters who'd served through traumas around the world, and having had a sister with a TBI, and having begun her neuroscience work in the 1970s when Learning Disabilities came on the scene, Tomaino had a unique coming together of personal and professional experiences. I like the manner in which she laid the book out and gave practical experiences that could help own settle themselves in to the optimal arousal zone, which is what it's all about. She also entered the field at a time when professional training said the brain was fixed, but evolved over time to realizing how truly plastic and malleable the brain truly was. The mid-90s brought ADD/ADHD and she had clients whom she helped with this condition as well. Her case studies were interesting, and her arc of history equally fascinating, so I truly admired her speaking from a personal as well as a professional perspective. I've read 6-8 books on the brain and this I felt had the most practical examples and guidance for a person to be truly helped in adjusting themselves to be their better selves, if not their best selves.