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

A new study has found that 0.2 percent of children in Oman are on the autism spectrum — an estimate about 15 times higher than the previous one.

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

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

Electronic neurons made from silicon mimic brain cells and could be used to treat conditions such as autism.

Some men who have an autistic child carry mutations linked to the condition only in their sperm.

Few of the most popular early treatments for autism are supported by strong evidence, according to two new studies.

Autism may stem from a different — and larger — set of genetic mutations in women than it does in men.

The question of autism’s heritability is compelling for researchers and laypeople alike, but many people in both groups misunderstand its definition.

This year’s hot topics in autism research center around brain organoids, heart rate, the gut microbiome, treatment timing and early detection.