The research community on the study and design of systems for personal informatics has
grown over the past decade. To take stock of what the topics the field has studied and …

Single-case experimental design (SCED) is a rigorous method of studying behavior and
behavior change. A key characteristic of SCED is repeated, systematic assessment of …

Background Supporting mental health and wellness is of increasing interest due to a
growing recognition of the prevalence and burden of mental health issues. Mood is a central …

Diagnostic self-tracking, the recording of personal information to diagnose or manage a
health condition, is a common practice, especially for people with chronic conditions …

Sleep is an important aspect of our health, but it is difficult for people to track manually
because it is an unconscious activity. The ability to sense sleep has aimed to lower the …

The market for smartphones, smartwatches, and wearable devices is booming. In recent
years, individuals and researchers have used these devices as additional tools to monitor …

Desirable outcomes such as health are tightly linked to behaviors, thus inspiring research on
technologies that support people in changing those behaviors. Many behavior-change …

Although self-tracking offers potential for a more complete, accurate, and longer-term
understanding of personal health, many people struggle with or fail to achieve their goals for …

Self-tracked health data can help people and their health providers understand and manage
chronic conditions. This paper examines personal informatics practices and challenges in …

Clinical data augmented with contextual data can help patients with chronic conditions make
sense of their disease. However, existing tools do not support interpretation of multiple data …