How often should we eat?

“There has been some recent interest, even in the mainstream media, in the practice of ‘intermittent fasting’. Essentially, this means going for extended periods of time without food. It comes in many different guises. Skipping of significantly delaying breakfast is one approach. Contracting the ‘window’ available for eating each day to, say, 6 or 8 hours is another approach. Still another is to alternate days of no food or very limited intake with days during which eating is unrestricted…”