Recovery Doesn't Batch
Time off reliably lifts wellbeing, and the lift is largely gone two to three weeks after returning. That says less about vacation than about what companies stack on top of it.
Vacation works. Across 13 studies, time off lifted wellbeing on nearly every measure the researchers tracked: mood up, stress down, exhaustion down. Then wellbeing fell sharply during the first week back, and within two to three weeks the gains were largely gone.
That is a fair description of what a vacation is, not a defect in it. Recovery is a resource that spends down, the way sleep does. Nobody expects a good night in March to cover April.
The trouble is what gets built on top of the assumption. Leave policy becomes the wellbeing strategy, the annual survey asks about burnout in November, and the intervening 11 months get treated as capacity to be filled. A generous PTO policy is then asked to offset a rhythm that depletes people daily, which is arithmetic it cannot win.
The researchers' own recommendation is the tell: shorter breaks more often beat one long one. Recovery has to run at the same cadence as depletion.
So look at the week rather than the year. Whatever your team cannot get back on a Wednesday, they will not get back in August.
Source: Speth, Wendsche & Wegge, We Continue to Recover Through Vacation!, European Psychologist (2023)
