THE festive cheer is over, the weather is bleak, you've spent too much and you may have put on a few pounds - yes, it's Blue Monday.

All of these factors combined are a perfect storm for the day believed to be the most depressing of the year.

2 If you've already failed to keep your new year resolution, don't be too hard on yourself Credit: Getty Images

When is Blue Monday 2020?

The purported day of gloom is Monday, January 20.

The date is generally reported as falling on the third Monday in January, but can also be on the second or fourth Monday, or even the Monday of the last week of January.

The first one was January 24 in 2005.

It came about after Dr Cliff Arnall was asked to work out the most depressing day of the year.

2 If you suffer from long-term depression, don't be afraid to seek help Credit: Getty Images

What is Blue Monday?

It is calculated using a series of factors in a (not particularly scientific) mathematical formula.

The factors are: the weather, debt level (specifically, the difference between debt and our ability to pay), the amount of time since Christmas, time since failing our New Year's resolutions, low motivational levels and the feeling of a need to take charge of the situation.

It was originally conceived by a PR company but has now become an annual event.

Mood boosting films for Blue Monday Sometimes a good film makes for a brilliant mood-booster. Kyle Entwistle, Film Content Manager at Vue Entertainment has put together a top 10 list of feel good films that are sure to make you feel less gloomy. Bridesmaids (2011) A brilliant and pant-wettingly funny comedy guaranteed to pick you up Superbad (2007) So many great lines and a true depiction of friendship Before Sunrise (1995) One of the greatest romance films in the history of cinema. Intelligent, passionate and unmissable Up (2009) Guaranteed to make you cry within the first heartbreaking 10 minutes, Up will having you sobbing with joy by the end The Shawshank Redemption (1994) Not only one of the greatest films of all time, but a truly life-affirming tale of hope Mary Poppins (1964) A classic in the true sense, Poppins fills you with joy, from the smile that’s impossible to wipe off your face down to your toe-tapping feet Rocky (1976) The greatest underdog story in cinematic history, prepare to shout and pump your fist for the Italian Stallion As Good As it Gets (1997) The kind of film you wish you could watch for the first time again and again, Jack Nicholson is simply brilliant in this lovely dramedy When Harry Met Sally (1989) A brilliant depiction of love and friendship, there is no better rom-com than When Harry Met Sally Coco (2017) You must see this offering from Pixar! The tale of a boy who enters the Land of the Dead to find his great-great-grandfather, Coco is guaranteed to fill you with joy and happiness.

What can you do about Blue Monday?

Exercise, starting an activity you've wanted to do for ages and enjoying time with friends and family all help to banish the winter blues.

Personal trainer Andy Ward advises that exercise is a great tonic to feeling down, and it's best to avoid binge-eating and shunning your mates.

He said: "Squeeze in 30 minutes of exercise, it could be a fast walk, a light jog, a relaxing swim, or an intense HIIT class - just move for thirty minutes to feel the benefits.

“There are dozens of different fitness classes available. January is a great time to take up new hobbies and meet new people.”

If you don't feel like getting active on the day itself you may want to book something to take your mind off it, even if it's something as simple as a trip to the cinema.

However, if you are struggling with feelings of depression over a long period you should speak to your doctor, or a trusted family member or friend. For guidance please click here.

Why don't some people like the idea of Blue Monday?

Mental health charity Mind is derisive of the notion of Blue Monday, claiming the concept has no foundation in scientific research.

A statement on their websites says: "Here at Mind, we think it’s dangerously misleading.

"Those of us who live with depression know that those feelings aren’t dictated by the date.

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"Implying that they are perpetuates the myth that depression is just 'feeling a bit down', something that doesn’t need to be taken seriously."

Mind’s Head of Information Stephen Buckley said: “Blue Monday contributes to damaging misconceptions about depression and trivialises an illness that can be life threatening. "

Multiple branches of the Samaritans charity across the UK are aiming to turn Blue Monday into Brew Monday, offering a brew and a chat at events across the country, the Samaritans helpline is free to call every day of the year.

If you, or anyone you know, needs help dealing with mental health problems the Samaritans can be contacted on 116 123, or visit Mind’s website.