Happy people might have an easier job being thinner, according to a new UCSF study that links increases in serotonin to decreases in fat storage.
Either good news - or heaping insult upon injury - depending upon your situation.
It just makes sense, though. Health is a spiral. If you're treating yourself right and doing good things, it makes it easier to do more of the same, making yourself happier, nicer to be around.... But if you're sacked out on your couch eating Extra Value Meals and rotting your brain in front of the TV, it makes it that much easier to make another bad choice, and another, and another.
Inertia ain't the first Law of Motion for nothing.
On that note, I'm going to go run. (And increase my serotonin.)