I think it has less to do with how different we are and more with conditioning our body to accept changes, it doesn't happen in one day.
Well said!
A huge revelation, for me, was when I read about how our digestive system really works.
We condition our bodies to know when it's "time" to eat. Our bodies dutifully prepare before each meal, generating the juices needed to digest it and making room for the coming food.
This is what we perceive as "hunger." Our bodies don't NEED the food, they are just getting ready for what they know is coming.
This changed my whole outlook on eating, and dieting in particular.
It's also the source of my contention that the whole "most important meal" saying is pure BS.
I've read accounts of people who have experienced real hunger, and I hope never to have to find out first-hand how that feels. But apparently, it's a totally different thing from when we skip a meal.