Recent research, published by the British Ecological Society, demonstrates that while birdsong is linked to improved mood and reduced anxiety, these benefits can be negated by the presence of traffic noise. According to a study reported by Jalopnik, background traffic sounds significantly diminish the psychological advantages typically associated with natural soundscapes.
Read More
In the study, participants listened to nine recordings featuring varying combinations of birdsong and traffic noise. Researchers from the University of Surrey gathered feedback from over 1,500 individuals online, alongside measurements from a separate group of 63 participants who wore heart-rate monitors.
Results revealed that birdsong generally provided psychological benefits, irrespective of the loudness or complexity of the natural sounds. However, these positive effects diminished when traffic noise became discernible. Participants monitored for heart rate also exhibited signs of stress in response to added traffic noise.
This finding is consistent with earlier research, including a 2022 study in Scientific Reports, which also identified mood, cognitive, and anxiety benefits stemming from birdsong.
Noise pollution, often linked to health issues like hearing loss, anxiety, and disrupted sleep, appears to have a detrimental effect on stress levels, even at low volumes of traffic noise, which can fall below the World Health Organization's daytime limits. Increasing noise from roads, air traffic, and other sources makes quiet spaces increasingly rare, with estimates suggesting that noise pollution costs Europe approximately one million healthy life years every decade.
These findings underscore the importance of preserving not just natural habitats but also the auditory environment, as it plays a crucial role in promoting mental well-being.