The third Monday in January has been branded as 'Blue Monday' - the most depressing day of the year - and a GP has highlighted seven signs you could be suffering from a real disorder.
Blue Monday, which this year falls on January 17, actually originated as a PR stunt and has no scientific basis, but that hasn't stopped it achieving mythical status as a particularly gloomy day.
Dr Stephanie Ooi, a general practitioner at doctor-led private healthcare business MyHealthcare Clinic in London, says many people do actually experience a shift in mood at this time of year and are often left wondering why.