Anorectics may exercise excessively. Their preoccupation with food usually prompts habits such as moving food about on the plate and cutting it into tiny pieces to prolong eating, and not eating with the family. When the normal fat padding is lost, sitting or lying down brings discomfort not rest, making sleep difficult. As the disorder continues, victims may become isolated, and withdraw from friends and family. The body responds to starvation by slowing or stopping certain bodily processes.
Skin becomes dry, and hair and nails become brittle.
Lightheadedness, cold intolerance, constipation, and joint swelling are other symptoms. Reduced fat causes the body temperature to fall. Soft hair called lanugo forms on the skin for warmth. Body chemicals may get so imbalanced that heart failure occurs. Anorectics who additionally binge and purge impair their health even further.