Risks of Parkinson's Disease May Increase With Prolonged Exposure to Road Traffic Noise

A large Danish study found a modest but consistent association between long-term road traffic noise exposure and higher Parkinson’s disease risk, with a 3% increase for every 11.5 dB rise in noise at the most exposed side of a home. The Guardian reports: The researchers modeled noise exposure at the most and least exposed exterior of the residence of each participant and calculated the difference in noise levels. The magnitude of the effect was modest but consistent; at the most exposed facade, for every 11.5dB rise in noise level, the risk of Parkinson’s disease rose by 3% over the study peri