Webpolyphagia, also known as hyperphagia, is an intense hunger that is not satisfied by eating. The craving can be for food in general, or a specific food, and can. Webpolyphagia, also known as hyperphagia, is the medical term for excessive or extreme hunger. It’s different than having an increased appetite after exercise or other. Overactive thyroid, overactive appetite. Your thyroid gland is located in the front of your neck, just above where your collarbones. Webinsatiable hunger can be a sign that you are experiencing low blood sugar, you aren't eating enough, or a symptom of diabetes. If you are under great levels of. Web“ravenous” denotes an extreme level of hunger, often characterized by an intense desire for food that is almost insatiable. On the other hand, “hungry” simply refers to the feeling. Your body relies on food for energy, so it's normal to feel hungry if you don't eat for a few. Webif you regularly eat a hearty breakfast only to feel ravenous an hour later, there could be more behind your grumbling belly than real hunger.