Appetite loss, also known as anorexia, is a condition characterized by a decreased desire to eat. It can result from a variety of causes, including physical and psychological factors. Physical causes might include illnesses such as infections, chronic diseases, or gastrointestinal disorders. Psychological factors can include stress, anxiety, and depression. Appetite loss can lead to unintended weight loss, malnutrition, and a decrease in overall energy levels. It is important to identify and address the underlying cause of appetite loss to ensure proper nutrition and maintain overall health. Treatment may involve medical intervention, dietary changes, or counseling, depending on the root cause. If appetite loss persists, it is advisable to seek professional medical advice.