An unusual mix of bacteria may be to blame for the frequent gut problems in people with autism. New findings suggest they may also alter the mind.

Scientists can rattle off lists of dozens of genes linked to autism, but there’s much less agreement about which elements of the environment contribute to the condition — and by how much.

A new government mandate requires researchers to include females in their animal studies — or explain why they don’t. What will this mean for autism research?

Misdiagnosed, misunderstood or missed altogether, many women with autism struggle to get the help they need.

Half of children who have autism have trouble falling or staying asleep, which may make their symptoms worse. Scientists are just beginning to explore what goes wrong in the midnight hour.

There are hints that transcranial magnetic stimulation, which uses electricity to change how brain cells function, might improve the symptoms of autism. But hopes are running way ahead of the facts.

Some children shed the symptoms of autism and eventually lose their diagnosis. What sets them apart?

Some people with autism can tolerate extreme heat, cold or pressure and seem relatively insensitive to pain. Paradoxically, they may experience intense pain from idiosyncratic sources but struggle to communicate it.

A new study is the first rigorous test of a controversial idea: that the everyday interactions between caregiver and child can shape the course of autism.

Each child with autism is different from the next. One approach rapidly gaining momentum makes sense of this diversity by grouping children together based on their genetics, then looking for patterns in their symptoms. The long-term aim: personalized treatments for each subtype of autism.