Kenyan researchers are investigating a potential link between pesticide exposure and the increasing rates of Parkinson's disease. The neurological condition, which causes movement problems due to a lack of dopamine, is a growing concern as Africa's population ages.

• The World Health Organization reports that the number of people living with Parkinson's disease has more than doubled in the last three decades.
• Dr. Richard Morton from Newcastle University and Prof. Charles Newton of KEMRI-Wellcome Trust are leading the investigation.
• Studies are focusing on pesticides like paraquat and rotenone, as well as other environmental factors such as trichloroethylene (TCE) and air pollution.