Blue Monday: Why is today the most melancholic day of 2026?

The third Monday of January, known as "Blue Monday", is considered the most melancholic day of the year. The idea originates from a theory by academic Dr. Cliff Arnall, which suggests that a combination of factors, such as the weather, debts, low monthly salary, distance from the holidays, and reduced motivation, contribute to negative emotions. The formula [W+(D-d)]xTQ/MxNA, although seemingly complex, attempts to quantify this situation. Essentially, it takes into account psychological and environmental factors that affect mood. In simpler terms, "Blue Monday" coincides with the moment many people realize they have strayed from their goals and plans for the new year. The joy of the holidays has passed, finances may be tight, and the winter exacerbates feelings of depression. It is important to note that the theory of "Blue Monday" has been criticized for its lack of scientific evidence and its commercial aspect, as it was initially promoted by a travel company. Nevertheless, the idea has spread widely and is a phenomenon discussed every year.