If you ever want to perform a really statistical test on obesity, just go to one of the Casinos on the Las Vegas Strip. I just spent most of a week at the Excaliber on business but I had to walk through the Casino area. I have never seen so many obese people, of all ages in one place in my life. And then they compound it by sitting at the slot machines, smoking all day. I just can't get over the ones that drive around in the powered carts with oxygen tanks on the back and a cigarette between their fingers. Makes you want to dive for cover before the place explodes. All you hear is Hack Hack; Kaching Kaching: Hack Hack: "Hey, pass me one of them Krispy Kreams."
I did enjoy the gym at the Excaliber. Really nice set-up with great equipment. Also did a walk/hike from there up to the Wynn at the other end of the Strip and back. And I didn't touch any of the slots or tables. As you can see, I lead a healthy, if quite dull life. But this way I know I am coming back from Vegas with a lot more money that I went there with and not the other way around.