Wendy Chung is a pediatrician, a researcher, and a geneticist and she spends a good portion of her time trying to understand the genetic factors that influence the development of autism. As such, she knows a ton about the science behind this disease — or should I say, this spectrum of diseases. And in this fact-packed TED talk, she susses out exactly what scientists currently know — and don't know — about autism.

With all of the rumors and questions that swirl around autism and its causes, symptoms, diagnoses, and treatment methods, it can be hard to know what is fact and what is fiction when it comes to this condition. Chung gives us the facts. Take a look:

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