No, it's not the 'most depressing day of the year' but Blue Monday can still wreck your sleep — doctors explain why

Woman sitting in a dark room with the window blinds open .

It’s that time of the year when the festivities are done, the weather is cold and the days are short. So, it's no surprise the internet has branded today (the 19th January) 'Blue Monday'.

It's supposedly the 'most depressing day of the year', although there is a lot of debate online about whether it's simply a myth or a self fulfilling prophecy (we think it's going to be depressing, so it is).