Additional Study Information: U.S. Adults spend on average 11 to 12 hours a day sitting. Daily sedentary behavior is strongly associated with the risk of heart disease. The purpose of the BREAK II research study is to answer two questions: (1) How frequently should periods of prolonged sedentary time be interrupted? and (2) What is the appropriate duration or length of time of these breaks in sedentary time? If you are 18 years old or older, have a limited or no history of chronic diseases, have no physical disability preventing ability to walk, and are a non-smoker you may be eligible for this study. Participants will receive up to $325 for complete participation in this study. Participants will also have the option to receive an additional $80 for referring up to 2 people to complete the study. Please copy this link: tinyurl.com/BREAKII into your browser to learn more and complete our survey to see if you qualify. For more information contact our team! (347) 213-0907 cbch_break2study@cumc.columbia.edu