Autism is a Childhood disorder which is on the rise. The reason is unknown. Theroies abound.
Autism is an isolating disorder which continues into adulthood.
If any of you would like to know more about this disorder, let me say I am no authority so please google it.
My Daughter and former Daughter-in-law are both practioners in the field of Autism.
The autistic child may seem sad and unresponsive.