How does the environment impact Parkinson's risk?

Parkinson's disease is the fastest growing neurological disorder worldwide and population aging alone cannot explain it. 

A new David Geffen School of Medicine at UCLA study investigated specific air toxics in California's Central Valley and found striking results: nickel exposure at the workplace was associated with nearly a threefold increase in Parkinson's risk. Benzene and 1,3-butadiene showed similarly alarming associations. Identifying environmental drivers of neurodegeneration is essential if we are ever going to prevent it rather than just treat it. 

Read the entire paper: Traffic-related air toxics and Parkinson's disease in California's Central Valley