Autistic people who are hyperactive or have difficulty controlling their own impulses are the most likely to show ongoing self-injury.

Adults with autism vary enormously in their quality of life, and two factors may explain most of this variation.

Many people with autism have difficulty falling and staying asleep, but there may be ways to help them.

Many people with autism experience a triad of trauma: neglect at home, abuse from trusted adults and bullying at school or work.

People with autism show significant improvements in cognitive ability from age 12 to 23 years, but their autism traits remain stable over this time.

Restricted interests and repetitive behaviors constitute one of two criteria that define autism in the diagnostic manual for psychiatry.

Siblings of autistic children, like those with the condition, tend to have faces that are more masculine than average.

A new analysis hints at the source of the rampant inconsistency among brain imaging studies in autism: significant differences among study sites.

People with autism have more brain-related health problems, such as headaches and epilepsy, than typical people do.

The branch of the nervous system that regulates subconscious bodily processes such as breathing and digestion may play a key role in autism.