People with Repetitive Strain Injury (RSI) performing computer work for more than 4-5 hours/day are recommended to take microbreaks (30 sec to 1 min) every hour to reduce their symptoms. This is difficult during work as other things occupy their mind. While notifications can be used as reminders, they adversely impact the affective state and productivity of the user. Shape-changing devices demonstrate potential as they can provide passive awareness. We conducted an ideation session with HCI professionals to identify opportunities for shape-changing break reminders and interactive sessions with people with RSI. We found that the participants struggled to take enough breaks, found notifications inadequate, and modified their primary task to incorporate movement. They demonstrated an aversion to disruption, were receptive to shape-changing break reminders, and desired to emotionally engage with them. This demonstrates the potential of shape-changing break reminders as can be ambient and engender emotions through physical transformation. I want to start with thanking my wonderful supervisor, Dr. Audrey Girouard for giving me the opportunity to pursue my Master's degree under her guidance, for always being patient and supportive, and for creating an environment of constructive feedback and support in the lab. I would also like to thank my co-supervisor Dr. Anne Roudaut for her valuable and timely feedback, and for her support and guidance throughout the entire process. A big thanks to everyone at Creative Interactions Lab, this journey wouldn't have been possible without the numerous informal and formal chats, about this thesis, and everything under the sun. Special thanks to Lee, Alex, Victor, Dani, and Joanie for always being so supportive.