What eating a big meal does to your body

I am pretty confident that I can predict how I am going to feel after a big meal: snoozy, sluggish and definitely full. But by lunchtime the next day I am sure I will find room for another roast. When you think about it, it is pretty weird that the day after an enormous meal we can eat exactly the same quantity again. Did we not learn our lesson the first time?

Why do we still feel hungry after feasts like Thanksgiving or Christmas? Does overeating “stretch” your stomach, meaning...