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  1. Jan 6, 2018 · Autism spectrum disorder begins in early childhood and eventually causes problems functioning in society — socially, in school and at work, for example. Often children show symptoms of autism within the first year.

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  3. Autism is a complex disorder that results from a combination of genetic and environmental influences. Learn how these factors affect brain development, and how vaccines do not cause autism.

  4. Mar 31, 2021 · Autism is complex, and no two autistic people are the same. Because of this, researchers believe there are probably many causes of autism, including genetic and environmental factors.

  5. Autism is a complex disorder with no single cause, but likely a combination of genetic and environmental factors. Learn about the research on genes, interactions, and other biological causes of autism from NICHD.

  6. There are many known environmental, genetic, and biological causes of autism. Research indicates that genetic factors are predominant in the appearance of autism; however, the heritability of autism is complex, and many of the genetic interactions involved are unknown. [1] .

  7. Jan 25, 2024 · Autism spectrum disorder (ASD) is a developmental disability caused by differences in the brain. People with ASD often have problems with social communication and interaction, and restricted or repetitive behaviors or interests.

  8. Nov 1, 2021 · Autism is a group of neurodevelopmental conditions that affect communication and social interaction. Learn about the symptoms, causes, tests, and treatment options for autism, as well as the different types and subtypes of ASD.

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