Summer Fatigue: Why Vacations Can Exhaust You More Than Rest

Studies reveal that the body, accustomed to chronic stress, collapses upon relaxation, causing fatigue that even vacation rest cannot alleviate.

Generic image of an exhausted person on a beach lounger with the sea in the background.
IA

Generic image of an exhausted person on a beach lounger with the sea in the background.

Accumulated stress throughout the year can lead to 'summer fatigue,' a tiredness that appears during holidays despite rest, affecting up to 60% of adults.

The arrival of summer and the longed-for holidays do not always bring the expected relief. For many people, the end of the work routine leads to an exhausting paradox: feeling tired despite having time to rest. This phenomenon, known as summer fatigue, is a direct manifestation of accumulated chronic stress and nervous system overload. Symptoms include persistent fatigue, difficulty concentrating, sleep disturbances, and a general sense of exhaustion that does not improve with rest.
European studies indicate that up to 60% of adults experience fatigue during their vacation periods. The body, finally free from daily obligations, seems unable to regain energy, highlighting how deeply stress has become ingrained in the organism. Excess cortisol, the stress hormone, is more harmful than commonly believed.
Psychologist José Rivero explains that the fundamental problem is that "our body gets used to functioning at a very high level" due to the demands of modern life. During the long months of work, the body constantly secretes high levels of cortisol and adrenaline. When holidays arrive and we relax, the production of these substances decreases drastically, unmasking the accumulated exhaustion and bringing forth 'emotional fatigue'.
Rivero uses a graphic analogy, comparing the body to a machine that collapses if stopped suddenly. This shift involves moving from the sympathetic nervous system (action) to the parasympathetic system (rest). After months of functioning at maximum capacity, this abrupt change causes significant destabilization, resulting in profound fatigue. Often, this physical collapse leads to psychological distress, creating a vicious cycle of negative thoughts, stress, and anxiety.
Digital hyper-connectivity and the social pressure to be productive are significant obstacles to effective recovery. Mobile phones and social media keep the brain in a state of alert similar to the work environment, preventing real disconnection. Furthermore, attempting to be productive from the very first day of vacation, tackling accumulated bureaucratic tasks, prevents the nervous system from initiating its necessary recovery and disconnection process.
For truly restorative holidays, José Rivero clearly recommends starting with a period of total inactivity. "I would recommend first doing nothing for that week," he states emphatically. This initial block of pure rest is crucial for the body to begin recovering. It is vital to listen to the body's signals and accept the energy 'dip' as natural and necessary. For those planning active trips, the order of factors does alter the outcome; starting with a demanding journey is a mistake, as the body has not yet recovered. Resting first allows the brain to enter 'vacation mode,' enabling trips to be enjoyed from a leisure perspective rather than one of stress.
This strategy is the best prevention against the misnamed 'post-vacation depression,' which is not clinical depression but the consequence of brutal exhaustion after un-restorative holidays. Prioritizing rest from the first day is therefore key to truly recharging your batteries.