Taking the chance at lunch time to communicate with colleagues is without a doubt a good way to fight the surmounting gloom. However, it is no help at all if the topics are centered on negative moods about returning from holiday. Instead, it's suggested to use the time talking about future plans for the days ahead.
Getting busy with the job, on the other hand, is definitely necessary in dealing with the post-holiday depression syndrome. It put a hold on pressing tasks at work over the holiday since the celebrations, meet-ups, and related preparations have required the foremost attention. Now that we have returned, our focus should shift to the work and those postponed job issues. The post-holiday depression will certainly vanish along with the mountain of job tasks. In a word, the more one has accomplished during the first working days, the less blue one will feel.
Furthermore, making plans for the coming weekend can relieve returning workers from anxiety. By arranging fun things like starting a new class for an interest or hobby can revive the excitement of anticipation. In this way, the first week since the holiday will seem much shorter.