It could also be suggested that sedentary behavior influences different types of mental illness in varying degrees, yet the majority of studies focus on depression. In a recent systematic review, Teychenne, Costigan and Parker  suggested that a positive relationship may exist between overall sitting time and anxiety yet there was inconsistent evidence for other types of sedentary behavior (e.g., TV viewing, computer use) and the links with the risk of anxiety. As highlighted in this review and previous research, an important identifiable limitation in the research to date is the reliance on self-report items to assess sedentary behavior, often only measuring one type of sedentary behavior, usually TV viewing, which is not considered an accurate measure of total sedentary time. The aim of the study was to examine objectively measured sedentary behavior and mental health and quality of life across both week and weekend days in adults.