Autism is a complex developmental disability that results in social interaction and communication problems, generally occurring before age three. It was first named by Dr. Leo Kanner in the 1940s and research has expanded understanding since. Signs before age two include lack of babbling, pointing, word use, and eye contact. About 1 in 150 children are diagnosed with autism each year in the U.S., costing over $35 billion to support. While there is no cure, therapies can help reduce symptoms.