Psychopathology develops at different stages of development as a result of complex interactions between nature and nurture, and it can affect each person differently throughout infancy and influence adult results. Mental and physical health are inextricably linked, and cultural, societal, and economic variables all play a role. Anxiety, disruptive behaviour disorders, attention deficit hyperactivity disorder, and depression are the most common mental disorders among children and adolescents over the world, accounting for 13.4% of all cases. Neurodevelopment begins in the womb and continues throughout adulthood, with genetic differences, environmental exposure, and developmental timing all working in concert and in concert. Early life events have been related to a disruption of the neuroendocrine-immune circuitry, resulting in brain changes during vulnerable times. In addition, the environment may cause changes in the structure and function of the organs through altering the epigenome of the developing cell. Due to several risk factors such as poverty, hunger, and dangerous home situations, nearly 200 million children under the age of five are not reaching their developmental potential.
