In Eastern medicine we know the organ clock, a model that maps our biorhythm and provides a manual for our energetic daily routines.
One of the wisdom teachings from this model is that it is best to have dinner fairly early, for example at 5:30 PM. After dinner, you then "fast" until the next morning. The English word breakfast indicates that you are breaking your fasting period at this time.
This period of fasting gives your body time to partially digest your meal before you go to sleep. The later it gets, the less energized digestive organs such as the stomach or small intestine are, the organ clock shows. Snacking after dinner, or eating late, forces your body to continue working, which compromises other processes. For example, your night's sleep deteriorates. This is at the expense of harmony in the system and can lead to illness.
This is now also concluded by chronobiologists, biologists who focus on biorhythms, among other things. Where it was previously thought that it did not matter much when you eat, studies show that eating late disrupts the biorhythm and increases the risk of obesity and type 2 diabetes.
Eastern medicine was based on centuries of observations of life. These observations were not recorded in a way that we now recognize as scientific. But that does not mean that this empirical research, the study of the life force, is not true. This is increasingly being proven.