Post-vacation syndrome and setting the mood for work: neurophysiology and cognitive adaptation strategies Introduction: Brain mode dissonance The post-vacation syndrome (post-vacation syndrome, holiday blues) is not laziness or reluctance to work, but a natural state of cognitive and emotional dissonance caused by a sharp change in contexts. The brain, adapted to the "holiday" mode (reduced responsibility, different sleep rhythms, hedonistic orientation, high social stimulation), has to quickly switch to the "work" mode (structure, goal-setting, cognitive control, routine). This transition is associated with objective neurophysiological difficulties and requires not just willpower, but the application of scientifically based strategies. 1. Neurobiological basis: dopamine crash and neural network flexibility Dopamine system. The holiday period (New Year's holidays) is associated with increased activity of the reward system (mesolimbic pathway). Abundance of positive stimuli (delicious food, communication, gifts, entertainment) causes intense dopamine release. A sharp return to routine leads to relative "dopamine deficiency", which is subjectively perceived as boredom, apathy, and lack of motivation. The brain requires new "portions" of reward that work in the first days does not provide. Cognitive control and prefrontal cortex. Rest reduces the load on the prefrontal cortex (PFC), responsible for planning, concentration, decision-making, and self-control. Its reactivation requires time and energy. This is why the feeling of "fog in the head", forgetfulness, and difficulty focusing on the first work tasks arise. Disruption of circadian rhythms. Shifts in sleep and wakefulness desynchronize internal clocks (suprachiasmatic nucleus), affecting the production of melatonin and cortisol. This leads to daytime sleepiness, fatigue, and decreased productivity. 2. Psychological components: the "broken expectations" syndrome In addition to physiology, cognitive factors play a k ... Read more