[widgeon13]

I think the brain can evolve and adapt. There is also the concept of self discipline to consider otherwise we would all experience the same reaction as is reflected in the second to the last paragraph in the above article. Our brain was not designed for a specific point in time. If that were true, we wouldn't be where we are today.

"Our brains were designed for a time when food was scarce and starvation was a common cause of death. While too much hunger remains in modern times, most people in the United States face a challenge opposite to what our distant ancestors faced. Natural selection has not wired us for a scenario in which food is abundant, relatively inexpensive and often high in calories."