Here's a random-sounding connection: The older your house, the healthier you are. Confused? I know what you're thinking: How does one factor have anything to do with the other? Don't worry; there's a perfectly reasonable explanation.

It's not so much about the age of your house--it's about the age of your neighbourhood. You see, old neighbourhoods tend to be more walkable, whereas newer neighbourhoods tend to be built around this unfortunate habit we've developed of driving everywhere. And not so surprisingly, how walkable a neighbourhood is has a direct impact on the levels of obesity in the area.

So next time you're in the market for a house, consider buying into a older neighbourhood--or at least one where you can walk to the store.