^yeah, considering our genes were set millions of years ago and without going all paleo, it makes sense to go without food for a short period of time, often...these days, I liken our society as a bunch of lab rats, spending most of our lives caged, living in a laboratory, running in a hamster wheel.
We think life's good, we are all well fed, healthy and nothing can hurt us.
and we feel sorry, for those dirty little brown bastards, running around in those stinky drains.