Most depressing day of the year?

I heard on the radio today that a researcher has determined that today is the most depressing day of the year. Why? Christmas bills are arriving, there are very few, if any, days off of work coming up, it's almost time to work on taxes, and at least here in Minnesota we're experiencing the coldest week of the year and we're still not seeing much sunlight in a given day.
I think this guy has hit on something. Lewis Black has a great bit about taking extreme measures just to see a little color at this time of year. Everyone I know aruond here finds this a difficult time of year. Not only is it cold, but we've had wintery weather since Halloween. A snowy December is kind of charming. Now it's getting old.
But ultimately I find this news heartening for the same reason I kind of like December 21, the shortest day of the year. In December, every day from then on gets a little longer, and we get a little bit more sunlight. Every day after today, the supposed most depressing day of the year, should get a little better. The cold will come to an end and we'll start to see some sun. The bills will get paid eventually. The sun will come out tomorrow, Annie...