I believe something in our present diets is triggering a propensity to gain weight and have less ability to become "sated" quickly.
We all know that as we age it becomes more difficult to control weight--
Over fifteen years ago I started driving older children to school. But it was only five years ago that I started noticing the hugely obese children waddling out of the schoolhouses. It seemed to have come about rather quickly--
I was a rather sedentary bookwormy child--and I ate what I wanted to eat, whenever, and was skinny. We all know teenage boys who can demolish a hundred dollars' worth of groceries in a weekend while lying around playing video games--yet still look scrawny.
I see many huge children, and many of them are very physically active! What this is doing to their joints, I shudder to think. They eat like teenagers--like teenagers have always eaten. Lots and lots of food.
What I'm getting at--teenagers used to be able to get away with eating a lot. Now they can't. I believe something has changed in our diets that has thrown metabolism out of balance.
Like eating high calorie junk food 3 times a day?