Anorexia nervosa is a potentially life-threatening eating disorder characterized by an intense fear of gaining weight and a distorted body image. Individuals with anorexia often restrict their food intake, exercise excessively, and may engage in other behaviors to control their weight, such as purging or using laxatives. This can lead to severe weight loss, malnutrition, and a range of physical and psychological health complications. Treatment typically involves a combination of therapy, nutritional counseling, and medical monitoring to address the underlying issues and promote healthy eating habits and body image.