The authors propose using interactive and multisensory interfaces to design user behavior change. For this purpose, they used coauthor Nikolic's interactive art installation InnerBody , created to provoke health-care-related behavioral changes by arousing death anxiety. Visitors are invited to undertake a (fake) medical examination by interacting with the installation's human heart-shaped interface. Research outcomes are presented based on visitors' observations and participant responses in interviews after interacting with the installation.