Depression in children is a mood disorder that causes persistent feelings of sadness and loss of interest. Depression affects the way a child feels, thinks, and behaves, and can lead to physical and mental problems.

Mood disorders are a phenomenon related to stress. Depending on many factors such as life experiences, personality, and stressful events, each person has different reactions. Most importantly, people with mood disorders need to recognize the signs and tolerance limits to self-regulate or seek timely medical advice.

Tardive dyskinesia is a condition of movement disorders, dystonia, dystonia, and myoclonus. Drug-induced tardive dyskinesia occurs during the use of a drug or after stopping the drug. Drugs that can cause tardive dyskinesia include antipsychotics and antiemetics.