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Title : Feeling Down? Take A Hike - Walking In Nature Lowers Depression Significantly, Study Finds
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Feeling Down? Take A Hike - Walking In Nature Lowers Depression Significantly, Study Finds

study finds walking in nature produces measurable mental benefits and can reduce the risk of depression

Feeling down? Go for a walk.

A new study finds quantifiable evidence that walking in nature could lead to a lower risk of depression.

Specifically, the study, published in the Proceedings of the National Academy of Sciences, found that people who walked for 90 minutes in a natural environment, as opposed to participants walking in an urban setting high traffic, they showed decreased activity in a region of the brain associated with a key factor in depression.

"These results suggest that accessible natural areas can be vital for mental health in our rapidly urbanizing world," said co-author Gretchen Daily, Professor Bing in Environmental Sciences and a research associate at the Institute Stanford Woods, to the environment. "Our results may help inform the growing movement worldwide to make cities more livable, and to make nature more accessible to all who live in them."


More than half of the world population lives in urban environments, and is expected to increase to 70 percent in a few decades. Just as urbanization and disconnection of nature have grown dramatically, so have mental disorders, such as depression.

Indeed, urban dwellers have a 20 percent higher risk of anxiety disorders and 40 percent increased risk of mood disorder compared to people in rural areas. People born and raised in cities are twice as likely to develop schizophrenia.

exposure to nature is linked to mental health? If so, the researchers asked, what are the impacts of the nature of emotions and mood? You can help nature of the exhibition "buffer" against depression?


Natural against the urban environment

In the study, two groups of participants walked for 90 minutes , one in an area of ​​prairie dotted with oak trees and shrubs, the other along a four-lane highway heavy traffic. Before and after, researchers measured heart rate and breathing, performed brain scans and had the participants complete questionnaires.

The researchers found little difference in physiological conditions, but marked changes in the brain. Neuronal activity in the subgenual prefrontal cortex, a region of the brain are active during rumination - repetitive thought focused on negative emotions - was reduced among participants who walked in nature against which he addressed in an urban environment
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"This finding is interesting because it shows the impact of the experience of nature in one aspect of emotional regulation - something that can help explain how nature makes us feel better," said lead author Gregory Bratman, a student graduate of Stanford Emmett Interdisciplinary Program in Environment and resources, psychophysiology laboratory at Stanford and the Center for Conservation Biology.


"These findings are important because they are consistent with, but not yet prove, a causal link between increased urbanization and increased rates of mental illness, "said co-author James Gross, a professor of psychology at Stanford.

is essential for urban planners and other politicians to understand the relationship between exposure to nature and mental health officials, the study authors write. "We want to explore what elements of nature are - How much of it and what kinds of experiences - offer the greatest benefits," the paper said.

In a previous study, also led by Bratman, it was found that the time in nature to have a positive effect on mood and aspects of cognitive function, including working memory, and a cushioning effect on anxiety.

The studies are part of a growing body of research that explores the connection between nature and human welfare. The Natural Capital Project, led by the newspaper, has been at the forefront of this work. The project focuses on quantifying the value of natural resources for the public and predicting the benefits of investments in nature. It is a joint venture of Stanford Woods Institute for the Environment, The Nature Conservancy, the World Wide Fund for Nature and the University of Minnesota Institute of the Environment.

Coauthors of "Nature Experience reduces rumination and subgenual prefrontal cortex activation" as J. Paul Hamilton, the Nobel Institute Brain Research and Kevin Hahn, a research assistant professor of psychology at Stanford .

Watch the video:

news.stanford.edu SOURCE

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