Why when we want to eat or drink something it’s better to do it when we are sitting?!

Sitting down for a meal may also help your brain register that you've consumed a “real meal,” reducing the likelihood you'll overeat during the following meal ( 6 ). Summary: Eating while standing up may increase the speed at which you eat, which could cause you to overeat and consume more calories

while standing you could eat faster which could also end up in u choking and while sitting you can tell when you've eaten enough but while standing you most likely wont stop till you've overeaten