“Traffic Noise vs Nature Sounds: How Manmade Sounds Impact Stress and Anxiety Levels”

The study conducted by Paul Lintott and Lia Gilmour highlights the significant impact of manmade sounds, particularly vehicle traffic noise, on the positive effects of nature soundscapes on individuals’ stress and anxiety levels. Published in the open-access journal PLOS ONE, the research builds on existing evidence that natural sounds, like birdsong, have the ability to lower blood pressure, heart rate, and respiratory rate, as well as reduce self-reported stress and anxiety.

In the study, 68 student volunteers were exposed to three different 3-minute soundscapes: a nature soundscape recorded at sunrise in West Sussex, U.K., the same soundscape combined with 20 mile per hour road traffic sounds, and the same soundscape with 40 mile per hour traffic sounds. Participants’ general mood and anxiety levels were assessed before and after listening to the soundscapes using self-reported scales.

The results revealed that listening to the natural soundscape alone led to a reduction in self-reported stress and anxiety levels, as well as an enhancement in mood recovery after a stressor. However, when traffic sounds were added to the nature soundscape, the benefits of improved mood were limited. The study found that the natural soundscape without any traffic noise was associated with the lowest levels of stress and anxiety, while the highest levels were reported after exposure to the soundscape with 40 mile per hour traffic sounds.

Lintott and Gilmour suggest that reducing traffic speed in urban areas could not only improve safety but also have a positive impact on human health and wellbeing by preserving natural soundscapes. They emphasize the importance of creating environments where people can experience the benefits of nature on their health and wellbeing without the interference of anthropogenic sounds like traffic noise.

In conclusion, the study underscores the importance of protecting natural soundscapes and reducing manmade noise pollution in urban areas to promote better mental health and overall wellbeing. By prioritizing the preservation of natural sounds and minimizing the impact of traffic noise, communities can create healthier and more peaceful environments for their residents.