10 Minutes A Day In Nature Could Reduce Stress And Anxiety

The study found 10-20 minutes a day reduced stressed and anxiety for students aged 15-30. eukukulka/ Shutterstock

Across the globe, college- and university-aged students are experiencing high levels of stress and mental ill-health. For example, in the past ten years in the UK there has been a fivefold increase in the number of students reporting mental health problems, including anxiety, depression, and schizophrenia.

Some of the most common mental health problems experienced by US students include overwhelming anxiety, feeling so depressed it is difficult to function, and hopelessness. Some even reported contemplating suicide. Yet despite mental ill-health becoming increasingly common among students, many face long waits or limited access to mental health services.

But a growing body of research suggests that one way of improving our mental health might be as simple as getting outdoors. In fact a recent review of evidence found as little as 10 minutes a day of exposure to nature could be beneficial to students – although there are caveats.

Evidence shows that being in natural environments can help reduce stress and improve mental wellbeing. While this solution might sound promising, finding the chance to access natural environments can be limited. Many students have to spend a majority of their time indoors studying, attending lectures or in the library.


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Numerous studies looking at the health benefits of being in nature have started focusing on finding out how long we need to spend in nature in order to experience health improvements. One study found that a nature visit of 20 to 30 minutes three times a week was most effective for reducing levels of cortisol (the “stress” hormone) in the body.

Another study showed spending a minimum of 120 minutes in a natural environment – compared with having had no contact with nature in the last week – significantly increased the likelihood that a person would report feeling in good health and having high wellbeing. However, neither of these studies specifically focused on college- or university-aged students.

Minimum dosage

The recent review sought to identify the minimum nature dose needed to improve the mental health of college- and university-aged students and what types of nature-based activities these benefits came from. They looked at a total of 14 studies, which altogether included 706 students from Japan, the US and Sweden.

The authors looked specifically at studies published in English or French, where the participants were aged between 15- and 30-years-old. They also looked only at studies that examined how much time a person needed to spend in nature, whether the study monitored changes in the participant’s mental health, and compared these changes across at least two environments. All the studies they looked at compared urban environments to natural environments (areas like nature reserves, forests, urban parks, and nature areas on University campuses).

Overall, the review found that compared with equal time spent in an urban setting, as little as 10 to 20 minutes (and up to 50 minutes) of sitting or walking in a range of natural settings led to significant health improvements. These included reduced heart rate, blood pressure and cortisol, improved mood and reduced anxiety.

10 Minutes A Day In Nature Could Reduce Stress And Anxiety Green spaces on campus are important. aslysun/ Shutterstock

These findings support the results of previous studies that looked at people of all ages. This suggests that college and university settings could provide regular doses of nature to target and improve the mental wellbeing of their students. Students might also do well to incorporate nature exposure into their every day lives as one way of combating stress and mental ill-health.

But despite these encouraging findings, they should be interpreted with caution. Most of the studies included in this review were conducted in Japan and in male participants. So these findings might not be true for students of all genders and from across the globe.

It’s also unclear whether the students studied were suffering from mental ill-health at the time of the research. Emerging evidence suggests that nature exposure might be most beneficial for individuals with low wellbeing. So it’s important to determine which groups of students this kind of experience will most benefit.

The review also failed to investigate what benefit physical activity (other than walking) in natural settings would have. So-called “green exercise” has been shown to have additional health benefits compared to nature exposure or physical activity alone, resulting in greater improvements in self-esteem and mood.

Finally, the researchers didn’t include a meta-analysis of the studies – a technique for bringing together multiple scientific studies to find any common effects – in order to determine the strength of the overall evidence. Nor did it consider the bias or quality of the studies included. So it’s not clear how strong the overall effect is or how reliable the included studies are. Further research will need to address these gaps.

Based on the findings of this review, and the growing body of research that supports the mental health benefits of nature exposure and green exercise, both students and the general population should try to spend time in nature as part of their daily lives as a way of combating stress and improving mental health.The Conversation

About The Author

Carly Wood, Lecturer in Nutrition and Exercise Science, University of Westminster

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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