PHYSICAL DYSFUNCTION

Autism: Causes

Causes Scientists don’t know the exact causes of autism spectrum disorder (ASD), but research suggests that both genes and environment play important roles. Genetic factors In identical twins who share the exact same genetic code, if one has ASD, the other twin also has ASD in nearly 9 out of 10 cases. If one sibling […]

Autism: Risk Factors & Diagnosis

Who Is At Risk? Studies measuring autism spectrum disorder (ASD) prevalence—the number of children affected by ASD over a given time period—have reported varying results, depending on when and where the studies were conducted and how the studies defined ASD. A survey by the Centers for Disease Control and Prevention (CDC) of health and school records of […]

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