Atomic Habits: An Easy & Proven Way to Build Good Habits & Break Bad Ones · chapter 6 · id atomic-habits-c6-01-anne-thorndikes-hospital-cafet

“Anne Thorndike's hospital cafeteria study showed that placing water in more visible locations increased water consumption by 25.8% without any additional signage or announcements.”

needs contextconfidence: high⚠ extracted by pipeline, re-audit pending

Receipts

Thorndike et al. 2012, American Journal of Public HealthDOI registry: valid
Water sales increased significantly after combined color-coded labeling AND choice architecture (repositioning). Approximately 6 million cafeteria transactions over the study period. Quasi-experimental design at MGH.
Thorndike et al. 2014 follow-up, Preventive MedicineDOI registry: valid
Effects persisted at 2-year follow-up in the same cafeteria, suggesting durability of choice architecture interventions.

This claim is a stable, citable object. If you can falsify a verdict, tell us — corrections are loud here.