January 24 is the most depressing day of the year (tip from the increasingly brilliant Colbert Report). From the BBC:

“The formula for the day of misery reads 1/8W+(D-d) 3/8xTQ MxNA.

Where W is weather, D is debt - minus the money (d) due on January’s pay day - and T is the time since Christmas.

Q is the period since the failure to quit a bad habit, M stands for general motivational levels and NA is the need to take action and do something about it.

Dr Arnalls calculated the effects of cold, wet and dark January weather after the cosiness of Christmas coupled with extra spending in the sales.

He found 24 January was especially dangerous, coming a whole month after Christmas festivities.”