why some individuals successfully maintain behavior changes while others relapse, and she became fascinated by the role of identity, environment, and automaticity in sustaining new habits. SheDanielle Williams is a behavioral science researcher and writer who has spent over a decade studying the mechanisms of habit formation, behavior change, and human motivation. Her work bridges the gap between academic research and practical application, translating complex findings from neuroscience, psychology, and behavioral economics into actionable strategies that help people transform their daily lives.
Williams began her career as a clinical researcher at Johns Hopkins University, where she contributed to studies on behavioral interventions for long-term health outcomes. Her research focused on has since published in peer-reviewed journals including the *Journal of Behavioral Medicine* and *Health Psychology Review*, and her work has been cited in hundreds of academic papers worldwide.
In addition to her research, Williams has worked as a consultant for Fortune 500 companies, healthcare organizations, and educational institutions, designing behavior change programs that improve employee wellness, patient adherence, and student performance. Her approach is grounded in the principle that lasting change is not about willpower—it is about system design. She has helped organizations redesign physical environments, digital interfaces, and workplace policies to nudge better decisions without relying on individual effort alone.
Williams is a sought-after speaker and has given talks at SXSW, the Society for Personality and Social Psychology annual convention, and the American Psychological Association's Technology, Mind, and Society conference. She is also the creator of the Habit Foundations online course, which has enrolled over 40,000 students from 130 countries and maintains a 4.8-star rating.
*The Habit Equation* is her first book. She lives in Portland, Oregon, where she applies her own research to her daily habits—including running along the Willamette River, maintaining a consistent writing practice, and proving that even someone who studies habits for a living still struggles with them some days.