The National Association Against Sitting is a public-health education nonprofit focused on reducing prolonged sitting and sedentary behavior through evidence informed guidance and outreach.
Sitting has become the default often without us realizing it.
Prolonged sitting has become the default in modern adult life, often without deliberate choice or awareness. As people move through adulthood, daily routines increasingly involve time seated at desks, in vehicles, during meetings, and in front of screens.
This gradual shift toward sedentary behavior is rarely discussed, formally taught, or clearly explained. Over time, extended periods of sitting particularly when regular movement is limited or inconsistent have been associated with increased health risks.
The National Association Against Sitting (NAAS) exists to close this education gap by helping people understand how sedentary patterns develop, why they matter from a public-health perspective, and what evidence-informed strategies can help reduce prolonged sitting responsibly.
The organization works to improve understanding of sedentary behavior and its health impacts by providing accessible educational resources and promoting practical approaches that help individuals and organizations sit less and incorporate healthier movement patterns into daily life.
We provide clear, accessible information about sedentary behavior and movement health, grounded in established research and public-health guidance.
We translate research into practical, realistic recommendations that individuals and organizations can apply in real world environments.
We support the development and adoption of voluntary best practices that encourage healthier movement patterns, without mandates or one-size-fits-all solutions.
We work with employers, teams, and institutions to address prolonged sitting through structured education, guidance, and movement aware environments.
We take a calm, evidence informed approach focused on systems and environments; not blame, trends, or quick fixes.
We approach sedentary behavior as a public-health and design issue, not a personal failure or fitness trend. Our role is to educate, inform, and support healthier everyday environments through understanding, structure, and practical guidance.
National Association Against Sitting (NAAS) serves individuals and organizations seeking credible, research informed guidance on reducing prolonged sitting and sedentary behavior in everyday environments.
This work is intended for:
• Individuals seeking evidence based information on sedentary behavior
• Employers and organizations focused on healthier workplace environments
• Schools and community institutions
• Public-health, wellness, and policy stakeholders
Whether you are seeking to learn, improve everyday environments, or explore organizational programming, NAAS is designed to meet you where you are.
We are building resources and guidance to support healthier movement environments.
Contact NAASThe National Association Against Sitting is a public-health education nonprofit focused on reducing the negative health effects of prolonged sedentary behavior through research, education, and evidence-informed guidance.
