The world's population is aging, and this shift in demographics will place a high burden on the world's healthcare systems. Smart technology provides a potential method of addressing the demands of these changing demographics. In this paper, we describe the design for a smart calendar that supports elderly people in their daily tasks and activities with the use of ambient notifications. We describe a typical day in the life of a target user, and how the smart calendar system would support the user in living self-sufficiently as she ages. We then discuss design challenges for implementing the persuasive technology. These challenges include correctly detecting a change in behavior and their urgency, the effectiveness of ambient notifications to create health behavior change, and privacy concerns with data collection and sharing.
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