Control over what? Why should some people need "control"?

Haven't you ever felt that you've simply had enough to eat, regardless
of "willpower" or "discipline"?

"Greed" and "sloth" are fine concepts in theology; Thomas Aquinas
identified them as among the seven deadly sins. But they don't help at
all in understanding overeating. Nor can it be "control" that explains
why healthy people find a meal satisfying.

But why do *some* people feel satisfied consuming enough calories to
cover their needs -- but other people (up to half the population!),
after eating more than they need, still feel hungry?

I'm convinced there are problems with a mechanism sometimes called the
"appestat" -- whatever tells people they've had enough and leaves them
feeling satisfied.

Trying to make overeaters feel guilty is an ineffective and cruel thing
to do!