Happy Blue Monday! According to a questionably scientific formula, the most depressing day of the year falls on January 21 in 2013.

Blue Monday was created by UK psychologist Cliff Arnall back in 2005. Arnall looked at various issues that can cause depressing and found that the most depressing day of the year falls on the third Monday of January.

Why? Well it’s a Monday for one. Arnall also says that this is the time of year where holiday shopping bills are due, New Year’s resolutions are starting to fall apart and the weather is typically miserable. So yes, Blue Monday may seem like the most depressing day of the year.

Yahoo notes, however, that Arnall’s scientific claim has been questioned by many since it was created as part of a marketing campaign for a travel company.

Arnall admits that pinpointing an exact date as the most depressing of the year isn’t particularly helpful to anyone. He does, however, appreciate that people use Blue Monday as a time to re-examine their lives.

Arnall told the Telegraph:

“I’m pleased about the impact it if it means people are talking about depression and how they feel but I’m also encouraging people to refute the whole notion of there being a most depressing day and to use the day as a springboard for the things that really matter in your life … I see a lot of clients who are just fed up with materialistic lives, trying to play catch-up with your neighbors and forgetting what the important things are.”

What do you think about Blue Monday? Do you think it is the most depressing day of the year.

‘There is threat of job redundancy and the cost of food and fuel are going up.’ Since the idea of Blue Monday has become well known Mr Arnall, from Brecon, Wales, has admitted the idea of a single most depressing day was ‘not particularly helpful’ because it became ‘a self-fulfilling prophecy’ and that achieving happiness and being less materialistic was a year-round aim.