“One of the biggest reasons not to take a two-week vacation is returning with a ton of stress because there is too much on your plate,” she says. “Even if you vacation for one full week and the two adjoining weekends, it can be manageable, but two full weeks is just too much and the stress begins to accumulate.

Psychologically, a two-week vacation is often considered ideal rather than "too much," as it allows the human body to fully decompress from the "toxic shock" of workplace stress. Research suggests that it takes about three to four days for "transitory stress" or "leisure sickness" to fade and for the brain to truly transition into a relaxed state. A two-week break provides a full middle week of peak enjoyment and energy restoration, which is linked to an 8% increase in performance ratings upon return. While shorter breaks provide a temporary mood boost that fades in about a month, a fourteen-day holiday allows for deeper "novel experiences" that improve brain function and creativity. However, the benefits of a vacation usually peak around the eighth day; after two weeks, some travelers may experience a "law of diminishing returns" where the desire for home routines begins to set in. For most, fourteen days is the "goldilocks" duration: long enough to filter out all negative tensions and "de-clutter" the mind, but not so long that the eventual transition back to reality becomes emotionally overwhelming.