Blue Monday: We (readers and writer) know it is a rubbish marketing ploy, but some other people believe it is the most depressing day of the year.

Today is ‘Blue Monday’, the most depressing 24 hours in the year, and so it’s ideal for contemplating happiness, says Sharon Ní Chonchúir

IF psychologist Dr Cliff Arnall is right next Monday will be the most depressing day of the year.

SMILE – because today is officially the happiest day of 2010.