Definition: The word "anorexia" originally referred to a disorder characterized by severe weight loss, often due to negative thoughts or emotional pressures. Today, it is used in medicine more commonly to describe people with symptoms such as fatigue, decreased energy levels, and difficulty concentrating. Anorexia is an eating disorder characterized by a persistent lack of appetite and/or reduced body weight. The term "anorexic" was applied to those who experienced significant loss of weight due to excessive negative thinking or stress. The root meaning of the word "anorexia" comes from the ancient Greek words "ana" meaning "weight" and "orkeia" meaning "to desire." It is similar in meaning to how the English word "overweight" originated, which is an overconsumption of food rather than a lack of appetite. In the Bible, we refer to anorexia as an "anaphylaxis," a medical emergency that occurs when someone consumes allergens. This is a specific example of an eating disorder caused by severe weight loss due to stress or other life-threatening circumstances.