Anorexia Nervosa
When most people think of anorexia nervosa, they think of a disorder that causes people to lose weight. And while it is true that anorexia nervosa can cause weight loss, there is much more to this complex disorder than just a lack of appetite. The exact cause of appetite loss in those with anorexia nervosa is still not fully understood. However, there are a few possible explanations for why this may be.
One theory is that people with anorexia nervosa may have a lower-than-normal level of leptin hormone in their bodies. Leptin is produced by fat cells and helps to regulate hunger by signaling to the brain that the body has enough energy and does not need to eat. A lower-than-normal level of leptin can therefore lead to feelings of hunger, even when the body does not need food.
Another theory is that people with anorexia nervosa may have a dysfunction in the hypothalamus, which is the part of the brain responsible for regulating hunger and satiety signals. This theory is supported by the fact that people with anorexia often have other disorders, such as anxiety or Obsessive Compulsive Disorder (OCD), which are also associated with dysfunctions in the hypothalamus.
