Sound of traffic increases stress and anxiety, study finds

A recent study published in PLOS ONE reveals that manmade sounds, particularly vehicle traffic, can diminish the stress-relieving benefits of natural soundscapes. Conducted by researchers from the University of the West of England and the Bat Conservation Trust, the study involved 68 student volunteers who listened to three different soundscapes: a nature soundscape, the same soundscape combined with low-speed traffic noise, and the same soundscape with higher-speed traffic noise. Results indicated that while the natural soundscape alone significantly reduced self-reported stress and anxiety levels, the introduction of traffic noise led to increased stress and anxiety, particularly with higher traffic speeds. The findings suggest that urban planning strategies, such as reducing traffic speeds, could enhance the positive effects of natural environments on mental health and well-being. The authors emphasize the importance of minimizing anthropogenic noise to allow individuals to fully benefit from the calming effects of nature.

- Traffic noise increases stress and anxiety, overshadowing the benefits of natural soundscapes.

- Natural sounds can lower blood pressure and improve mood recovery after stress.

- The study suggests urban planning should consider reducing traffic speeds to enhance public health.

- Listening to nature sounds alone resulted in the lowest levels of stress and anxiety among participants.

- The research highlights the negative health impacts of anthropogenic noise pollution.