Stone Age man
Our body or our brain loves carbohydrates. From our biology, which dates back to the Stone Age, the carbohydrates are interpreted as something good and mature and in our brain it activates our reward center. Whenever our reward center is at play, we are motivated to repeat the action. In this case, say, eating carbohydrates again. The downside of an active reward system, however, is that we can also become addicted to it.
ravenous hunger attacks
This means that in principle it produces too much insulin in anticipatory obedience. The result is that our blood sugar quickly drops again and this leads to a short-lasting feeling of fullness and, above all, to subsequent cravings.