Hunger is like a one way valve - you can gain weight and your body will not stop you, but as soon as you start to incur caloric deficit, your body will turn on

Hunger is like a one way valve - you can gain weight and your body will not stop you, but as soon as you start to incur caloric deficit, your body will turn on lots of alarm bells. Hunger is also impossible to compare, as it is an internal sensation. Response to hunger is trained, but it is extremely hard to retrain.