Sheila Harris is a behavioral science researcher and writer specializing in habit formation, routine design, and the psychology of lasting change. She holds a master's degree in applied psychology from the University of Bristol, where her research focused on the role of contextual cues in automating health behaviors. Her work has been featured in publications including *Psychology Today*, *The Guardian*, and *Fast Company*.
Before becoming a full-time author, Sheila spent eight years working as a behavioral design consultant for organizations in the healthcare and technology sectors, helping teams build products and programs that supported sustainable behavior change. Her approach draws on the research of BJ Fogg, Wendy Wood, and James Clear, translating academic findings into practical frameworks that everyday readers can apply without specialized knowledge or equipment.
Sheila lives in Portland, Oregon, where she writes, teaches workshops on habit design, and continues to study the intersection of neuroscience and daily routine. She is an advocate of the principle that meaningful change does not require dramatic effort, only intelligent structure. *The Habit Stack* is the product of that conviction.
You can find more of her work and connect with her community at sheilaharriswriter.com.