Forty seconds of looking at green sustains attention
People who glanced at a flowering green roof for 40 seconds made fewer attention errors afterward than people shown a concrete roof.
The short version
Looking at a patch of green for less than a minute can measurably help you stay on task. In this experiment, people who spent a 40-second break looking at a flowering meadow on a city rooftop made fewer attention errors and responded more consistently afterward than people who spent the same 40 seconds looking at a bare concrete roof. A break does not need to be long, or even outdoors, to do some good — but what you look at during it appears to matter.
What the researchers did
The study tested a prediction from attention restoration theory: that natural scenes hold attention gently and effortlessly, giving the deliberate, effortful kind of attention we use for work a chance to recover.
A total of 150 university students first completed a demanding sustained-attention task on a computer, the kind that requires you to respond quickly to a stream of items while holding back on a rare target. They were then randomly assigned to a 40-second micro-break viewing one of two images of a city rooftop: one covered by a flowering meadow green roof, and one that was bare concrete. Afterward, everyone did the attention task again.
What they found
- Fewer missed responses. People who saw the green roof made significantly fewer omission errors — moments where attention lapsed and they failed to respond — on the second round.
- Steadier responding. Their response times were also more consistent, a sign that attention was holding steady rather than drifting in and out.
- The concrete roof did not help in the same way. Because both groups had a break of identical length, the difference points to the content of the break, not simply time away from the task.
Limits and caveats
This is one lab experiment with university students, a single short task, and an image on a screen rather than a real view. It measured attention minutes after the break, not across a working day. Reviews of the wider nature-and-attention literature find real but modest effects that do not show up on every measure (see Stevenson, Schilhab & Bentsen, 2018), so this result is best read as a promising, cheap intervention rather than a proven productivity tool.
What it means for how you work
If you take short breaks during focused work, use some of them to look at something green: a window onto trees, a plant on the desk, or even a nature photograph. It costs under a minute and has some evidence behind it. Pair it with what is known about break structure — fixed intervals rather than breaking at random (Biwer et al., 2023) and brief, genuine switches away from the task (Ariga & Lleras, 2011). The key is that the break should actually move your attention elsewhere; scrolling through email in the gap is not the same as looking at a meadow.