Autism is a brain disorder that makes communication and social interaction difficult. It affects more children in the US than cancer, diabetes, and AIDS combined, with about 1 in 88 children diagnosed with some form of autism. The symptoms of autism appear before age 3 and can include delays in speech, lack of eye contact, preference for solitary play, repetitive behaviors, fascination with specific topics, difficulty communicating needs and understanding others' feelings. While symptoms and their severity vary, children with autism struggle with social interaction and expressing themselves.