28 Day Myth by Jenny Carlton

Twenty-eight days. That's the number insurance companies settled on, the number treatment centers built their programs around, and the number families have been told to expect ever since. It has almost nothing to do with how the brain actually heals.
In 28 Day Myth, Jenny Carlton traces that number back to its origins, a military scheduling convention adopted by an industry and locked in by a billing cycle, and lays out what the research actually says: meaningful stabilization takes a minimum of ninety days, often longer, and unfolds in stages no single program can shortcut.
Written after her own family's experience with her brother Billy's addiction, this is both a clear-eyed guide through detox, residential care, PHP, and IOP, and a workbook for the families living through each stage, including how to hold a boundary without giving up, and how to plan for a discharge that doesn't end in relapse.
Healing doesn't happen in 28 days. It happens in layers. In time. In continued support.
Jenny Carlton writes alongside the William Pollard Foundation for Hope & Healing, created in honor of her brother, Billy. 28 Day Myth is written for every family standing in the middle of someone else's addiction, tired, hoping, and looking for something more honest than twenty-eight days