For generations, we have treated vacations as rewards. Work hard, save some money, clear the calendar and eventually earn the right to disappear somewhere for a week.
Science is beginning to suggest we may have that relationship backwards.
A growing collection of research is examining travel not simply as recreation, but as something capable of influencing stress, loneliness, depression, cognitive flexibility and even some measures of physical health. More intriguingly, researchers are finding that some of the benefits can begin before the suitcase is packed and continue after the traveller returns home.
It doesn’t mean your doctor is about to prescribe two weeks in Tuscany. But there is increasingly credible evidence that occasionally removing ourselves from our normal surroundings may be surprisingly good for us.
And one of the reasons appears remarkably simple: travel makes our brains work.
At home, much of life is automated. We drive familiar roads, shop in familiar stores, speak to familiar people and navigate environments our brains already understand.
Drop yourself into Tokyo, Bangkok, Lisbon or Buenos Aires and suddenly almost nothing is automatic. You have to navigate unfamiliar streets, interpret signs, choose food, communicate with strangers, understand different customs and constantly make small decisions.
That mental friction of travel may be valuable.
Tweet
A 2025 study published in Tourism Management investigated whether novel travel environments could stimulate creativity. Across a field experiment and four additional experiments, researchers found that environmental novelty generated interest, which encouraged cognitive flexibility — essentially the ability to shift perspectives and think in different ways.
Earlier research reached a remarkably similar conclusion. A study of workers tested before and after their vacations found their cognitive flexibility increased following recreational travel, although their ability to generate highly original ideas did not significantly change.
In other words, travel may not turn you into Picasso, but it might shake your brain out of some familiar patterns.
Travel and the Aging Brain
The implications become particularly interesting as travellers get older.
A 2024 study published in the International Journal of Environmental Research and Public Health examined leisure travel among older adults and its relationship with loneliness, depression and cognitive function.
The researchers found significant associations between travel distance and all three measures. Long-distance travel was associated with higher cognitive function, fewer depressive symptoms and lower loneliness. The authors suggested that travel’s opportunities for social interaction, new relationships and mental engagement could potentially contribute to healthier aging.
Another study, using data from 8,524 participants in the Korean Longitudinal Study of Ageing, produced an even more striking result.
Older adults who had not travelled during the previous year had a 71 per cent higher risk of experiencing depression the following year than those who had travelled. Researchers also discovered the relationship worked in both directions: people experiencing depression were considerably less likely to travel.
That doesn’t prove skipping a vacation causes depression. People who are healthier, wealthier and more socially engaged may simply be more capable of travelling, and researchers are careful about distinguishing association from causation.
But the pattern is strong enough to warrant attention.
The Loneliness Effect
One of the newest pieces of evidence concerns something increasingly recognized as a significant health problem: loneliness.
Research published in the Journal of Hospitality and Tourism Management in 2026 examined whether travel itself could reduce what researchers call “state loneliness” — the immediate experience of feeling lonely.
The researchers conducted a field experiment, followed 40 people longitudinally and then tested their findings in a survey involving 684 respondents.
Their conclusion was that travel can reduce loneliness through something they describe as environment switching. Simply moving into a different physical and social environment appears capable of disrupting some of the circumstances reinforcing feelings of loneliness.
That distinction matters.
Travel’s social benefits don’t necessarily require making lifelong friends at a beach bar in Phuket. The act of entering another environment, interacting with different people and becoming engaged with unfamiliar surroundings may itself change our emotional state.
Even shorter journeys could matter. Research cited in the 2024 study of older travellers included an analysis of 17,624 respondents that found increased participation in day trips and short trips was associated with reduced loneliness.
Apparently, the brain doesn’t always demand a business-class ticket to benefit from going somewhere.
Happiness Can Begin Before Departure
Perhaps the best argument for always having another trip planned is that some of travel’s benefits appear before we actually leave.
A large study involving 72,533 people found that anticipation of an upcoming trip was positively associated with happiness and life satisfaction. Interestingly, previous travel experiences didn’t demonstrate the same relationship.
A separate longitudinal study followed travellers before and after their trips and found subjective well-being began rising roughly 15 days before departure and remained elevated for approximately a month afterward. Expectations before the trip and unexpected positive experiences while travelling helped prolong the effect.
That means researching the restaurant, looking at hotel photographs and imagining yourself walking along a beach may actually be part of the experience rather than merely preparation for it.
The vacation effectively begins in your head.
The Benefits Don’t Last Forever
There is, however, an important catch.
Vacations aren’t magic.
One classic study involving 1,530 Dutch participants found vacationers were happier before their trips than people who weren’t travelling, probably partly because of anticipation. But for most people, the post-vacation happiness boost disappeared relatively quickly. Only travellers who described their holidays as particularly relaxing experienced significantly greater happiness afterward.
Research examining workplace burnout has found a similar pattern. Vacations can significantly reduce stress and burnout, but those improvements gradually fade after employees return to their normal environments. One study found burnout returning to pre-vacation levels within approximately three weeks. Another found a similar return within four weeks.
Which raises an interesting possibility.
Maybe the ideal strategy isn’t necessarily one enormous vacation every year.
It could be travelling more often.
More Trips May Matter More Than One Big Trip
There is even some evidence connecting vacation frequency with physical health.
A study of workers eligible for paid vacation examined vacation habits alongside markers associated with metabolic syndrome — a cluster of conditions linked with increased risk of heart disease, stroke and type 2 diabetes.
Participants averaged about five vacations and roughly 14 vacation days during the previous year. Researchers found that as the number of vacations increased, the number of metabolic syndrome symptoms declined. Their statistical model suggested the risk of metabolic syndrome fell by nearly a quarter with each additional vacation taken, although the relatively small sample of 63 workers means the findings should be interpreted cautiously.
Still, it contributes to a broader idea emerging from the research: regular interruptions to routine may matter.
A long weekend somewhere new, a few days exploring another city and a major international trip may potentially provide repeated periods of anticipation, novelty, movement, social interaction and recovery rather than concentrating everything into one annual escape.
Not All Vacations Are Created Equal
There is another lesson buried in the research.
Simply changing your postal code isn’t necessarily enough.
The emerging evidence suggests that some of travel’s most interesting benefits come from engagement.
Walk somewhere.
Learn something.
Try food you’ve never eaten.
Navigate without knowing exactly where you’re going.
Talk to somebody.
Take a cooking class.
Visit a market.
Climb the hill.
Get on the train.
Allow yourself occasionally to be confused.
These are precisely the things modern travel sometimes attempts to eliminate. Apps tell us where to go. Algorithms tell us where to eat. Cars collect us at airports. Resorts create environments where guests can travel thousands of kilometres without meaningfully interacting with the destination at all.
Convenience has enormous value, particularly as we age. But perhaps we shouldn’t remove every bit of friction from travel.
Some of that friction may be the point.
Researchers are even beginning to discuss concepts such as “travel therapy.” A 2025 network meta-analysis examined 55 controlled studies involving 4,433 participants and looked at interventions resembling common tourism activities, particularly nature- and culture-based experiences, in relation to anxiety and depression. The researchers described the evidence as indirect rather than proof that tourism itself should be prescribed clinically, an important distinction as this area of research develops.
A broader 2025 review described tourism as an increasingly studied contributor to mental health while also cautioning that different forms of tourism can produce very different psychological outcomes.
So nobody should be cancelling therapy and booking Bali instead.
Travel isn’t medicine in the clinical sense. It isn’t accessible to everyone, it can create financial stress, exhausting itineraries can leave travellers needing a vacation from their vacation, and much of the research still shows associations rather than direct cause and effect.
But something interesting is happening.
Scientists are beginning to put numbers around something travellers have intuitively understood for centuries.
Leaving home changes us.
We anticipate. We navigate. We solve problems. We move. We encounter strangers. We experience unfamiliar cultures. We occasionally get lost. We see things capable of producing wonder and perspective. And eventually we return to the routines we temporarily left behind.
Perhaps that’s why one of travel’s greatest pleasures has always been coming home — and then, sooner or later, wondering where we might go next.
