Hedonic Treadmill
The thing you once wished for can become the thing you barely notice.
You finally replace your old phone. The screen looks brilliant, the camera feels magical, and you keep finding reasons to pick it up. Later, it is simply your phone. The phone has stayed better. The feeling of “better” has faded.
One phone. A changing feeling.
An illustrative story, not measured data
“This is such an upgrade.”
The clearer photos and reliable battery stand out. The practical improvement and the burst of excitement arrive together.
Swipe or scroll sideways to see the whole story.
Lines show the idea, not a happiness score or a fixed timetable. Usefulness stays higher in this example; real upgrades vary.
Your idea of normal catches up.
At first, you compare the new phone with the old one. After using it every day, the clearer screen and longer battery life become what you expect. They attract less attention.
This is hedonic adaptation: getting used to a change so that its emotional effect becomes smaller. “Hedonic” refers to pleasure. The hedonic treadmill describes how chasing the next improvement can keep restarting the cycle without delivering the lasting lift you expected.
Less thrilling can still mean better.
Your phone can still last all day, even when you no longer admire its battery. A quieter home can still help you sleep, even when you stop celebrating the silence.
Fading excitement does not erase practical value. Nor does it prove happiness is fixed forever. People adapt differently, and some changes have lasting effects on well-being.
Listen for “then I’ll be happy.”
The pattern is easiest to notice when a real gain gradually turns into a new minimum. These are possible everyday examples, not predictions about everyone.
- At work
- A promotion feels like arrival. Later, the title becomes ordinary and the next title looks like the real finish line.Recognition may fade; more autonomy can still matter every working day.
- At home
- A larger flat feels luxurious. Once the extra room is normal, you start noticing the kitchen you would like to replace.The fresh excitement may fade; space for a desk can remain useful.
- In social approval
- A post gets more attention than usual. Soon, that number becomes the result you expect, and a similar response feels disappointing.The reference point has moved, even though the response has not become smaller.
Imagine the ordinary Tuesday.
Before chasing an upgrade, picture life after it stops feeling new. What problem will it still solve? Saving time, reducing discomfort, or making room for something you value may still justify it.
You can also pause to notice a benefit you now take for granted, or vary how you enjoy it. Research suggests appreciation and variety may help sustain enjoyment; neither promises permanent excitement.
Why a treadmill, and where does the metaphor stop?
A moving belt, an unchanged position
On a treadmill, you walk forward while the belt carries you back. You keep taking steps, yet stay in the same place. Psychologists Philip Brickman and Donald Campbell used this image in 1971 to describe a pursuit of happiness in which new gains become familiar and people keep reaching for more.
A tendency, not a life sentence
The strongest version of the metaphor says everyone returns to an unchanged happiness level after good or bad events. Later research challenged that view: well-being can change, and people differ in how much they adapt. Adaptation can also soften some negative feelings, but loss, illness, or unemployment may have enduring effects. There is no universal recovery clock.
Our phone diagram isolates novelty. It does not model a whole life, and it cannot predict your reaction to a major event.
For the origin and limits: Diener, Lucas & Scollon (2006), Beyond the Hedonic Treadmill.
For appreciation and variety: Sheldon & Lyubomirsky (2012), The Challenge of Staying Happier, a three-month study of positive life changes.
Choose what makes life better after it becomes normal.
Enjoy the new thing. Just remember that its lasting value and its first burst of excitement are two different things.