Yeah that's exactly right. Even when I over-strain myself my body is still kind of in a shock for 40-50 minutes (during which I also drink a lot of water) and t

Yeah that's exactly right. Even when I over-strain myself my body is still kind of in a shock for 40-50 minutes (during which I also drink a lot of water) and then suddenly boom, I can eat an elephant. Same with digestion. I found out the hard way that taking a walk after the restaurant is an awful idea. The body really needs a relaxed pose and to be not doing anything else for at least an hour after a meal (with slowed down metabolisms this can go up to 3h, sadly) so you can properly get your nutrients. Only then you should be doing another activity.