 This review aims to identify individual, social, environmental and policy-related determinants or correlates of sedentary behaviors among adults aged 18 to 65 years. The authors searched for articles published between January 2000 and September 2015 using PubMed, M-Base, CINEL, P-S-Y-C-I-N-F-O, and Web of Science. They found 74 original studies out of 4041, including 71 observational, two qualitative, and one experimental study. Sedentary behavior was primarily measured as self-reported screen leisure time and total sitting time. Individual level factors such as age, physical activity levels, body mass index, socioeconomic status, and mood were significantly correlated with sedentaryness. Several environmental correlates were identified, including proximity of green space, neighborhood walkability, and safety, and weather. The authors suggest that future research should focus on longitudinal study designs, exploration of policy-related factors, further exploration of environmental factors, analysis of interrelationships between identified factors, and better classification of sedentary behavior domains. This article was authored by Grain O'Donohue, Camille Pashou, Keatley Mensa, and others. We are article.tv, links in the description below.