Just 10 Minutes of Forest Birdsong Cuts Stress, Study Finds

A short burst of nature — just 10 minutes — may be enough to meaningfully reduce stress in college students, according to new research from North Carolina State University. The study, published in the journal “Environmental Conservation,” found that sitting in a restored forest while listening to birdsong produced the greatest reductions in stress and negative emotions compared to three other combinations of environment and sound.Researchers recruited 106 student volunteers, each of whom visited two locations on or near campus: a restored forest with more than 70-percent tree canopy cover and a gray urban space outside the Talley Student Union. At each location, participants listened to one of two soundscapes through noise-cancelling headphones — either recorded birdsong from St. Marks National Wildlife Refuge in Florida or traffic noise recorded near a busy Parisian intersection. Every student experienced all four combinations.After each 10-minute session, participants rated their stress on a scale of zero to 10 and answered questions about positive and negative feelings, as well as how restorative the experience felt.The results were clear-cut. The forest-plus-birdsong pairing produced the lowest stress scores, the fewest negative emotions, and the highest sense of mental restoration. Traffic noise in the gray space ranked last on every measure. Mixed combinations — birdsong in the urban space or traffic noise in the forest — fell in between.One notable finding: When it came to how restored participants felt, location mattered more than sound. The forest environment outweighed the effect of birdsong alone, though birdsong still added a meaningful boost on top of the natural setting.The findings carry practical implications. With roughly 60 percent of college students reporting mental health challenges by 2020 — a figure that worsened during the pandemic — low-cost, accessible interventions are increasingly in demand. Birdsong, the researchers noted, is already present in urban parks and green corridors, free for anyone nearby to hear. This study used a small patch of restored urban forest, not a vast wilderness preserve, and still produced strong effects.Equitable access remains a concern, however. Restored forests with dense canopy cover are not evenly distributed across neighborhoods, meaning the benefits of nature-based stress relief may not reach all communities equally.The study has limitations, including the small test sample of students, all from a single university. Only 10-minute exposures were tested, and results reflect immediate self-reported feelings rather than lasting outcomes. Sound pressure levels were not precisely measured, and the study could not determine an ideal “dose” of nature exposure.

Just 10 Minutes of Forest Birdsong Cuts Stress, Study Finds

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