Autism - an Epidemic?

Professor David Skuse discusses the rise in autism diagnosis, which does not appear to relate to toxins, immunizations, or allergies.

Many people still suspect that the increasing number of children we recognize with autistic disorders reflects some aspect of our twenty-first century environment and its impact on their development. In truth, we do not know the cause of autism, but there is no evidence that toxins, immunizations, or allergies are responsible. We do know that the risk of developing autism is strongly influenced by our genetic inheritance, but not in any simple way.