There is a particular kind of flatness that comes from moving through the same loop of places, day after day. Home, the same desk, the same walk to the same shop, back home. Nothing is wrong, exactly. But the days start to feel laminated together, hard to tell apart in memory. You get to the weekend and struggle to recall what the middle of the week actually held, because it looked like everything around it.

There’s a finding from a few years ago that I keep turning over, because it lines up so closely with that low-grade flatness, and with its opposite.

I’m not a psychologist, and the study I’m about to describe is one observational study of a particular group of people, not a settled rule about how everyone’s mood works. It’s a clue, not a prescription. Keep that in mind as you read.

In 2020, a team published a paper in Nature Neuroscience that did something I find quietly clever. Rather than ask people to remember how varied their lives felt, they tracked it. They followed 122 people in New York City and Miami using the GPS in their phones, over three to four months, and every other day they sent a text asking people to rate how they felt, using words like happy, excited, strong, relaxed, and attentive.

What they found is the pattern above. On days people moved among more varied places, they tended to report more positive feeling. And the relationship ran both ways. As co-author Catherine Hartley put it, “if I feel better today, I’m likely to move around” and have more novel experiences the next day, and the reverse held as well. Feeling good nudged people out into the world, and getting out into the world nudged the feeling back up.

It’s worth being clear about what “varied places” actually means here. Reading this, it’s easy to picture travel, big novelty, the kind of trip you save up for. But that isn’t what the GPS was measuring. It was measuring the ordinary spread of a day. 

I notice this sort of pattern most clearly looking back on my first year living in Vietnam. Everything was new that year. The city, the noise, the food, the language, the version of myself I was becoming in the middle of it. That year felt enormous in retrospect, longer than most years since. I don’t want to flatten it into a happy postcard, because there was real loneliness in it too, visa stress, a lot of evenings alone. But the texture of that time was rich in a way that the laminated weeks are not, and the difference was variety. I was visiting new places and new experiences almost constantly, whether I wanted to or not.

That’s the dramatic end of the scale. The mundane end is the one I actually live now, and I arrived at it by accident. My weekday splits between home in the morning and two different coffee shops in the afternoon, with a walk between each block. I built that pattern to clear my head between tasks, not to manage my mood. The location variety is a byproduct. But it does rhyme with the study in a way I only noticed after reading it. My ordinary day already has a small amount of roaming baked into it, and the days I skip it, staying put from morning to night, are reliably the duller ones.

The study’s author Aaron Heller’s own reading of all this is broad. “New and varied experiences are broadly beneficial for the brain,” he told Inverse. That’s one researcher stating his interpretation confidently, and it’s worth holding it as his view rather than proven fact. But he also said something gentler that I think lands better. “Even if you may not tend towards exploring,” he noted, “there are probably benefits” to doing so anyway. The hedges are his, and they’re the right ones to keep.

The part that stays with me is the direction it can run. If feeling flat and staying put feed each other, the loop can run in the wrong direction just as easily as the right one. The worse a stretch feels, the less you go anywhere. The less you go anywhere, the more the days laminate, and the flatter the stretch feels. Nothing dramatic happens. The world just quietly shrinks to the size of the rooms you’re already in, and the shrinking is so gradual you don’t clock it as a cause.

Talking to a qualified counsellor or therapist is worth a great deal more than any study summary.