The National Association Against Sitting (NAAS) is a public-health nonprofit on a mission to reduce prolonged sedentary behavior, in workplaces, schools, communities, and daily life.
The Problem
Most adults spend 8 to 10 hours a day sitting: at their desk, in their car, on the couch. And most of them have no idea that prolonged sitting carries real health consequences, independent of whether they exercise.
Research links sedentary behavior to cardiovascular disease, metabolic disorders, blood sugar dysregulation, and musculoskeletal strain. The troubling part? Even people who hit the gym regularly aren't off the hook if they spend the rest of the day seated.
NAAS exists to change that; with clear, credible education and practical tools that help people and organizations actually do something about it.
The average time U.S. adults spend sitting each day, more than they spend sleeping.
Prolonged sitting is now recognized as a health risk separate from physical inactivity. Exercise alone doesn't undo it.
Despite decades of research, sedentary behavior is almost never addressed in workplaces, schools, or public-health campaigns.
That's the gap NAAS was built to close.
We translate the science into plain language, practical strategies, and real programs, so individuals and organizations can sit less and live better.
You're not alone. Here are the questions we hear most: with real answers, not fluff.
Here's the thing about sedentary behavior: it's not a willpower problem. It's a design problem. Modern workplaces, commutes, and screen culture have made sitting the default, and most people never had a choice in the matter.
Sitting more has become built into the human experience, and our bodies were not designed for sedentary behavior. This adaptation has negative health outcomes substantiated by science.
NAAS approaches this as a public-health and environmental issue, not a personal failure. We're not here to shame anyone for sitting. We're here to arm people with the research, the tools, and the practical strategies to change their environments: at work, at home, and in their communities.
No blame. No quick fixes. Just real guidance grounded in movement science, behavioral health, and public-health research.
Get behind the movement, and get off your NAAS
Pro-Movement Assistance to Reduce Sedentary Behavior
Sedentary behavior is one of the most well-documented and least discussed health risks of our time. NAAS makes the science accessible; translating research on prolonged sitting, sedentary lifestyles, and movement health into clear, jargon-free resources that anyone can understand and use.
Most adults accumulate the majority of their daily sedentary time at work. NAAS partners with employers, HR teams, and institutions to address prolonged sitting through practical workplace wellness programs, movement aware environment design, and evidence informed guidance built for real workplaces.
The science of sedentary behavior is growing fast, but most of it stays locked in academic journals. NAAS bridges that gap, turning peer reviewed research on sitting, physical inactivity, and movement health into plain language strategies that individuals and organizations can apply today.
There is no universal playbook for reducing sedentary behavior in organizations, and there shouldn't be. NAAS supports the development of voluntary, adaptable frameworks that help workplaces, schools, and communities build healthier movement environments without mandates or one-size-fits-all solutions.
Whether you're an office worker trying to break the 3pm slump, an HR director building a healthier workplace, a school administrator rethinking student movement, or a public-health professional looking for credible resources; NAAS was built with you in mind.
We're for anyone who suspects that sitting all day isn't great for them, and wants to do something about it without overhauling their entire life.
Most people know that sitting all day feels bad. Fewer know just how serious the health risks of prolonged sitting really are. NAAS gives you free, research backed resources to understand sedentary behavior and make realistic changes; no gym membership required.
Your team spends most of their waking hours at work, and most of that time seated. NAAS partners with employers and HR teams to address prolonged sitting through practical workplace wellness programs and evidence-informed guidance.
Sedentary behavior starts young and compounds over time. NAAS works with schools, community organizations, and public-health partners to bring accessible, inclusive movement education to the people and places that need it most.
Straight talk on sedentary behavior: backed by research, written for humans.
There are a few ways to connect with us; whether you want to learn, partner, or help fund the mission.
Get our monthly movement insights, new research, and NAAS updates delivered to your inbox. No spam. Just substance.
Subscribe to Our NewsletterInterested in workplace programming, partnerships, or organizational guidance? Let's talk about what NAAS can do for your team.
Explore ProgramsNAAS is nonprofit and donor-supported. Every contribution helps us reach more people with the programs and information they need.
Donate to NAASSitting 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.
Sedentary behavior is increasingly recognized as an independent health risk separate from lack of exercise. Even individuals who meet recommended physical activity guidelines may experience negative health effects if they spend most of the day sitting.
NAAS promotes evidence-informed guidance based on research in public health, movement science, and behavioral health. Our goal is to help individuals and organizations understand sedentary behavior and create environments that support healthier levels of daily movement.
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 are building resources and guidance to support healthier movement environments.
Contact NAASNAAS is a nonprofit on a mission to get people moving. We provide research-backed education on the health risks of prolonged sitting: for individuals, workplaces, schools, and communities.
