Autism
Autism is caused by the way that the brain develops, both before and after a baby is born. This means that some people who have autism are only mildly affected. These people may go to regular schools, go to work, and have partners and families. Some people are more badly affected. These people may be able to take care of most of their own needs at home like dressing and getting food, but not be able to have a regular job or travel alone. A person who has severe autism may need to be cared for all their life.