Next week it will be Blue Monday again: the third Monday of the year, often described as the most depressing day of the year. The concept originated in 2005 as part of a marketing campaign, developed on behalf of a travel company to promote holidays during the winter period. Psychologist Cliff Arnall was presented as the creator of a formula that was supposed to explain this “most depressing Monday”.
The concept was soon met with strong criticism. Several media outlets reported that the press release and the formula had been fully written by a PR agency. Academics were allegedly approached with the request – in exchange for payment – to associate their names with the formula in order to lend credibility to the story. Cardiff University, where Arnall was working at the time, publicly distanced itself from him shortly thereafter.
The fact that Blue Monday has no scientific basis does not mean that low mood or emotional difficulties do not occur during the winter months. Many people experience reduced energy, low mood or a sense of feeling stuck during this period.
Seasonal depression
What is scientifically supported is seasonal depression. In the DSM-5, this is classified as a depressive disorder with a seasonal pattern. It refers to a form of depression in which depressive episodes occur consistently during the autumn or winter months and typically subside in spring or summer.
Research shows that reduced exposure to daylight affects the body’s biological rhythm. Changes in the production of melatonin and serotonin can disrupt sleep patterns, energy levels, mood and concentration. These symptoms persist for several weeks or longer and cannot be explained by a “bad day” or a temporary setback. There is a coherent pattern of symptoms that is present nearly every day and has a clear impact on work, relationships and self-care.
In clinical practice, depression often co-occurs with other mental health conditions, such as anxiety disorders, trauma, addiction or personality-related difficulties. This combination can make recovery more complex and may lead people to remain stuck despite previous treatment.
At U-center, we treat adults with depressive symptoms, often in combination with other mental health problems. We do not focus solely on symptoms, but also on underlying patterns in thinking, feeling, behaviour and relationships. Within a multidisciplinary setting, clients work on insight, responsibility and change. Not through quick fixes, but with the aim of sustainable functioning after returning to daily life.
Do you recognise yourself in this and want to know whether treatment at U-center might be appropriate for you? Please contact us or read more on our approach.