I guess if you're feeling miserable, you might as well get a bunch of work or chores done . . . because it's not like they'd be getting in the way of a good time.
According to a new study out of Canada, being in a bad mood is actually GOOD for your productivity. They found that when people were unhappy, it helped them focus, manage their time, and prioritize.
There's one catch. If you're the kind of person who's able to turn around a bad mood quickly and feel happy again . . . then no, you won't be more productive. That's only a benefit for people who stew in their bad moods for a LONG time.