children may be born with mental disability
Some of the children may be born with mental disability in the world and considered to be mentally restarted children. But mental illness can be of different types and can occur at any stage of life. It can be caused by some sort of accidents or some sort of disease at any stage of life. There are many of the doctors and many researches have been done on the mental health. Sometime some kind of situations can also cause mental illness or disability in humans.