Liking someone makes you more likely to believe them, buy from them, and comply with their requests. The halo of warmth precedes the content.
The hedonic treadmill (or hedonic adaptation) is the tendency for people to return to a relatively stable level of happiness despite major positive or negative life events.
A Scene Worth Recognising
After receiving a yearâend bonus that doubled her usual paycheck, Maya felt a surge of excitement and imagined she would stay thrilled for months. She bought new clothes, upgraded her phone, and planned a vacation. The initial joy faded as the extra money became part of her regular budget, and after a few weeks she noticed her mood returning to the same level it was before the bonus. She realized the boost was temporary, not a lasting change in happiness.
What it means and how it works
The mechanism involves shifting reference points and habituation: as new conditions become the norm, they cease to stand out as salient contrasts, and emotional responses attenuate. Cognitive processes such as focalism (overâfocusing on the event when forecasting) and impact bias (overestimating the duration of emotional effects) contribute to mistaken predictions about lasting happiness.
When individuals experience significant changes in circumstancesâsuch as a windfall, a loss, a new possession, or a life transitionâtheir emotional response often shifts dramatically at first. Over time, psychological processes cause the impact of these events to diminish, and subjective well-being drifts back toward a personal baseline. This adaptation occurs for both pleasurable and painful experiences, leading to a pattern where lasting happiness is not strongly tied to external achievements or possessions.
Why it matters
Understanding the hedonic treadmill helps explain why pursuing wealth, status, or material goods often yields diminishing returns in wellâbeing. It informs personal goalâsetting, policy design (e.g., welfare programs), and marketing strategies by highlighting the limits of external change for sustained happiness and directing attention toward internal factors like relationships, meaning, and gratitude practices.
The verified research on this pattern supports the following:
- Lottery winners experience a temporary increase in happiness that diminishes to preâwin levels within a few months.
- Individuals tend to predict that positive or negative life events will affect their happiness for longer than they actually do.
Common misunderstandings
Misunderstanding 1: That major life events (e.g., winning the lottery) will produce permanent increases in happiness.
Misunderstanding 2: That we can accurately predict how long positive or negative experiences will affect our mood.
Misunderstanding 3: That happiness can be bought or achieved solely through external acquisitions.
See Hedonic Treadmill in everyday decisions
Pick a life context to see how this bias can show up outside the textbook.
The Martinez Family's New Home and the Fading Sunday Pancakes
A family moves to a larger home expecting lasting joy, but the excitement diminishes as the house becomes ordinary and their Sunday pancake tradition falters.
Scenario
The Martinez family saved for a down payment and bought a three-bedroom house with a backyard. For the first weeks they felt thrilled, hosting weekend barbecues and watching their kids play on the grass. They also tried to keep their Sunday pancake tradition, but the unfamiliar kitchen layout and extra chores made them skip it more often. After about two months the sense of novelty wore off; cleaning, mortgage payments, and daily routines took over, and their overall mood returned to the level it was while renting. They began to think about adding a patio or upgrading the kitchen, hoping to recapture the lost spark.
Where The Bias Enters
The initial happiness boost from the new home faded because the family adapted to the upgraded surroundings, making the house the new baseline and reducing its emotional impact; they also neglected a meaningful ritual that previously contributed to well-being.
Decision Check
After four weeks in the new home, each family member rates their daily happiness on a 1-10 scale and compares it to their rating while renting; if the difference is one point or less, they consider instituting a weekly family ritual (like reinstating Sunday pancakes) instead of pursuing another material upgrade.
This pilot example is illustrative and review-gated. It is designed to explain the pattern, not to claim a documented public case.
Sources
- Niroula, Rishab. REV 2.0 Topic Catalog. Hello to Halo.
- Cialdini, Robert B. Influence: The Psychology of Persuasion. Harper Business, 2006.
- Kahneman, Daniel. Thinking, Fast and Slow. Farrar, Straus and Giroux, 2011.
The next time this pattern surfaces, the move is not to fight it â it is to notice it. Naming Hedonic Treadmill creates a moment of pause before the decision. That moment is usually enough.