How often should you stand up from your desk?

If you work at a desk, you have probably felt it: you sit down at 9, glance up, and somehow it's noon and you haven't moved. The question of how often you should stand up has a refreshingly simple answer, and a few useful details behind it.

The simple rule: about every 30 minutes

The most widely repeated guideline is to get up and move roughly every half hour. The American Heart Association has pointed out that sitting for more than 30 minutes at a time can start to work against your health, so a short break around the 30-minute mark is a sensible default. You don't need a workout. Standing, walking to refill your water, or a few light stretches for a minute or two is enough to break the pattern.

A handy framework: the 20-8-2 rule

If you want something more concrete, the 20-8-2 rule is a popular starting point, associated with Alan Hedge, a professor of ergonomics at Cornell University. The idea is that for each half hour, you spend roughly:

• 20 minutes sitting
• 8 minutes standing
• 2 minutes moving

It's a guideline, not a law. Some people prefer a simple 30 minutes sitting and 30 standing. The point is the rhythm: change positions and add a little movement, often.

What the bigger guidelines say

For people using a standing desk, a 2018 consensus statement published in Applied Ergonomics and endorsed by Public Health England recommended standing for at least 30 minutes for every 60 to 90 minutes of sitting, and gradually building toward a total of two to four hours of standing and light activity across the workday. Note the word gradually. If you are new to it, ramp up slowly.

Standing all day is not the goal

Here is the part people miss. Standing still for hours is not better than sitting still for hours, and research has linked standing for more than about four cumulative hours a day with increased discomfort. The benefit doesn't come from standing itself. It comes from changing positions and moving. The real problem was never sitting versus standing. It was staying still. Your body is built to move, a little, often.

The hard part isn't knowing. It's remembering.

Almost nobody struggles to understand "stand up every half hour." They struggle to actually do it while a deadline is eating their attention. That is exactly the gap a gentle reminder fills. You don't have to watch the clock; something else watches it for you and taps you on the shoulder.

let a cow remember for you.

SuperMoo nudges you five times a day to stand and move for sixty seconds. Free, no account, made by a nonprofit.