Eating late at night can lead to undigested food in the stomach and improper movement of food, resulting in a 'food hangover' the next morning.

“so that's why when people eat late at night for example then that food doesn't get digested because there is not enough digestive juice first thing and second even if it gets digested in the stomach it doesn't move properly so then the next morning people get up and think um of course people consume some alcohol very often and then they think that this is Hangover but those who don't consume alcohol then they have the food hangover because it doesn't digest so that's one extreme example where food at the wrong time can um so healthy food at the wrong time can be crap or junk yeah”