re: GMO's and their impact on our weight.

I think it has a bit of truth in most all of the responses above. It's a combination of all. Too much time on the couch, video games, 24 hour sports channel that we would rather watch than go outside and participate, more corn syrup, more sugar, bigger portions, processed refined foods etc...the list goes on.

But two things. If genetically modified foods were not developed we would face far more famine than ever experienced. We cannot raise enough food to feed the world.

And I watched my grandparents eat homemade biscuits with lard, heavy cream dumped over it and topped with tablespoons of sugar and fruit. Fried foods and anything else you could deem unhealthy everyday of their ninety plus years. None were a pound overweight, had cholesterol or blood pressure problems and they probably consumed 10,000 calories a day. Hard work.

Air conditioning is as much to blame as all others. Climate control turned us into lazy fatasses.