For example, I eat too much and started eating less. I now eat normal portions instead of portions fit for 2 people. I have more than enough food and energy, and yet, I am hungry. The hunger is fake, I certainly don’t need more calories. But my body thinks it does based off of its knowledge.
Personally on the whole I’ve had no issues with controlling my weight. I’ve had a couple of isolated instances where I felt hungry all the time and started gaining weight rapidly despite my best efforts. Circumstances changed and it stopped. It sucked and I learned a new level of empathy for the people who get this all the time and not just as a one off.