Why Americans are fat

I hear much talk about the obesity problem in the US and what can be done about it. If nothing else, the reasons are obvious:

1. Huge food portions
2. Driving everywhere

We've done what we can to work around the first problem. We'll buy a single sub between two or three of us, for example, and only have one course for dinner. The latter is so much more difficult to deal with. Mum and I tried to hop from a mall to the Borders next door on foot, and nearly died in the attempt. Driving in Fort Lauderdale is a real pleasure, and I'll write more about that later, but the same superb road design that makes it fun makes walking all but impossible.

25 lengths of the pool a day for me, minimum.