What it means
Sedentary behavior is not the same as not exercising. A person can meet weekly exercise goals and still sit for most of the day. The US Physical Activity Guidelines put it simply: move more and sit less.
The guidelines note that more sedentary time is linked with higher risk of heart disease, high blood pressure and death from all causes. Replacing some sitting with light activity, even standing or slow walking, appears to help, especially for people who are least active.
The second edition of the guidelines removed the old rule that activity had to come in 10-minute blocks, so short walks and movement breaks all count toward weekly totals.
Practical ideas include standing during calls, walking after meals, setting a reminder to get up every half hour and parking farther away. A step counter shows how much sitting time you are replacing.
Why it matters
Low energy on a GLP-1 can quietly increase sitting time, which shrinks your daily calorie burn.