Although they may start out restricting, those who fit this profile often eventually engage in bulimic behaviors as well. Personality changes because improper nutrition causes actual changes in one s brain chemistry. Apathy, anger, nervousness, depression and anxiety are all common reactions to starvation. As well, people tend to become isolated, withdrawn and experience drastic reductions in sexual desire. The ability to concentrate, comprehend and use good judgment is severely impaired.
Severe fatigue is also common as food fuels our energy level.
Be aware though that some anorexics feel an incredible high from not eating, analogous to the feeling induced by certain drugs. They have a feeling that they can conquer the world only to find they lack the concentration and ability to ever carry any of their far-reaching projects to completion. Note that this euphoria is often short-lived as the effects of starvation eventually encroach.