People with autism may be up to six times more likely to develop Parkinson's disease in later life. New research offers a potential explanation based on the role of transporter molecules that recycle unused dopamine in the brain. Dopamine is a neurotransmitter crucial for managing movement and executive functions, and for reinforcing behavior. It's well known that Parkinson's is characterized by a drop in dopamine levels, while disruptions in the transport of the chemical have also been linked