• Depression: Being underweight or malnourished can cause physiological changes that can affect mood. Symptoms of depression include feelings of sadness, irritability or anger, loss of interest in activities that were once enjoyable, difficulty sleeping, fatigue, poor concentration, and sometimes even thoughts that the sufferer would be better off dead.
• Anxiety: Athletes who develop disordered eating may have significant anxiety or worry about their athletic performance, body weight or shape, and other areas of their lives, including school performance and relationships. Research shows that there is a correlation between restrictive eating disorders, e.g., anorexia nervosa, and perfectionism. Perfectionism is a personality trait in which people place emphasis on precision and organization, the striving for unrealistic personal standards, and self-criticism if these standards are not met. Perfectionists often suffer from anxiety and worry about a number of things in their lives, including those things listed above. Apart from perfectionism, other symptoms commonly seen in people with anxiety include difficulty sleeping, fatigue, poor concentration, irritability, physical restlessness, muscle tension, and physical symptoms such as headaches and stomach aches.