Returning from vacation is often dismissed as nothing more than a feeling of nostalgia. In reality, for our bodies, it’s a genuine adaptive shock.
The sudden transition from the relaxed pace of vacation to the hectic routine of work, school, and daily responsibilities can trigger specific physiological and psychological responses, known as post-vacation syndrome.
Understanding what happens to our bodies and minds is the first step toward navigating this transition without compromising our physical and mental well-being.
Biologically speaking, returning to a routine results in a sudden increase in cortisol levels—the stress hormone—and a disruption of the circadian rhythms that make up our internal biological clock. This imbalance can manifest as tangible physical symptoms.
From sleep disturbances—such as difficulty falling asleep and the feeling of waking up already tired—to immune system vulnerability caused by acute stress resulting from adapting to daily routines or to crowded, enclosed spaces.
Anxiety about returning to work also has a negative impact on the digestive system, causing bloating, abdominal pain, and colitis, and affects the musculoskeletal system, leading to tension in the neck and shoulders and sometimes causing tension headaches.
On a psychological level, the brain must reactivate cognitive circuits that are constantly under pressure but have been dormant for a few days.
In the first few days, it’s normal to experience a sort of “brain fog”—that is, difficulty concentrating, memory lapses, and a reduced ability to make quick decisions. The brain simply needs time to readjust.
Let's also add a touch of irritability and melancholy.
People feel a loss of flexibility in their schedules, which, combined with the impact of city life, can lead to mood swings, anxiety about the months ahead, and a temporary sense of apathy toward daily activities.
The symptoms of post-vacation syndrome are generally temporary and subside on their own within a few days—sometimes even 1 or 2 weeks. You can help this process along by following a few best practices.
If possible, it’s best to plan your return to work so that you avoid setting critical deadlines or scheduling high-stress meetings in the very first few days. Don’t let yourself get overwhelmed by the need to resolve all organizational and work-related issues within the first few days back—prioritize your tasks.
Try to gradually adjust your bedtime and wake-up times by reducing your use of screens and electronic devices in the evening to promote melatonin production.
Make the most of the remaining daylight hours to go for a walk outdoors or try to get back into your exercise routine: exercise stimulates the production of endorphins and serotonin, the body’s natural mood regulators.
Support your body with a light, balanced diet rich in antioxidants, vitamins, and minerals to combat fatigue and support the immune system.
Post-vacation syndrome isn't an illness, but rather our body's normal response to a major change in routine. Dealing with this transition by focusing on sleep, nutrition, and lifestyle helps minimize physical and mental discomfort, allowing us to get off to a good start and maintain the energy and well-being we gained on vacation for the long term.
