Depression is persistent feelings of sadness and loss of interest that disrupt a child's ability to function in school and interact with others. Eating disorders - such as anorexia nervosa, bulimia nervosa and binge-eating disorder - can result in emotional and social dysfunction and life-threatening physical complications. Eating disorders are defined as a preoccupation with an ideal body type, disordered thinking about weight and weight loss, and unsafe eating and dieting habits. Although the severity of ASD varies, a child with this disorder has difficulty communicating and interacting with others. Autism spectrum disorder is a neurological condition that appears in early childhood - usually before age 3. Compared with most children of the same age, children with ADHD have difficulty with attention, impulsive behaviors, hyperactivity or some combination of these problems. Attention-deficit/hyperactivity disorder (ADHD).

Diagnoses include social anxiety, generalized anxiety and obsessive-compulsive disorders. Anxiety disorders in children are persistent fears, worries or anxiety that disrupt their ability to participate in play, school or typical age-appropriate social situations. Mental health disorders in children - or developmental disorders that are addressed by mental health professionals - may include the following:

Chronic lying mental illness