Bad news for those of you living in Seattle, England, or any other place where a rainy forecast is the norm: Rainy weather can make it harder for you to shed weight.

Researchers in Scotland say rain can make you fat because this type of weather causes your levels of vitamin D to dip, which affects a hormone associated with hunger. Makes sense -- however, I think it definitely has something to do with cravings, as in, you're more likely to crave comfort foods when the weather has you down. Plus, when you're cooped up inside, what else is there to do besides snuggle up to a good movie with a big bowl of popcorn and mug of hot cocoa?

Either way, the point is this: Bad weather is no excuse to give up your healthy habits. After all, the gym is open in all seasons. When a craving hits, head for the treadmill or fill up on something healthy.