[lostapathy]

Correct - I wasn't trying to normalize obesity upthread, at all.

Bears are an example that shows very clearly it's normal for animals in nature to become very much "not lean" to survive, and the drive to put on fat stores is probably much broader in nature than animals that hibernate to survive winter.

What's unique about humans is that we've engineered our environment to the point that most of us no longer suffer long stretches of being unfed or underfed to strip the excess fat stores off of us.

Some people are clearly better than others at fighting the behavior evolution has programmed into them. It's not good for them today, but at the same time that drive for survival is what kept their ancestors alive.