This may seem surprising to you, but in the middle of the 19th century, doctors prescribed walks in the nature.
Concerned about the effects of pollution and noise on their urban patients in difficulty, doctors do not hesitate to prescribe a visit to a sanatorium or a more peaceful pastoral environment like the Swiss Alps.
Over time, these kinds of prescriptions have fallen into disgrace and today’s physicians are much more likely to write a prescription for Prozac than a visit to a park.
And yet, research suggests that doctors of the past were not wrong. Many recent studies show that not only does nature make us happier, but it also stimulates our creativity, brain function and physical health.
Here are some of the reasons why the next time you want to have more ideas, you’ll think about putting on your hiking boots.
1. How nature and the outdoors make us happier
Until recently, we have mostly had anecdotal evidence suggesting that nature was good for us. All this has changed with neuroscience!
Brain scans show that nature not only changes the way we feel subjectively, but also has an impact on our brain.
Gregory Bratman of Stanford’s National Academy of Sciences has published a paper about the changes that occur in the brain when people walk in nature.
In this study, he performed brain scans of 38 individuals to obtain a baseline. He also asked participants to complete a questionnaire to measure their tendency to ruminate negative thoughts.
Then, half of the study participants were guided to walk for 90 minutes in a natural setting in California, and the other half were instructed to walk along a busy road.
After the walk, the analysis was repeated and the subjects were asked to complete the questionnaire again.
The results showed that people who had walked in the wild ruminated less than urban walkers and showed decreased activity in the subgenual prefrontal cortex, an area of the brain related to mental illness risk.
Bratman suggests that these results have some excellent arguments that show that we should go for a walk in the “green” to immediately boost our mood.
“Spending time in the wild improves our mood.”
2. Nature boosts our creativity
If you’ve already “stuck” on an impending deadline, you know how frustrating it can be to block on a creative process.
Fortunately, science indicates that nature can also help us for this matter. University of Utah and University of Kansas psychologists decided to measure the impact of nature on creativity through the Remote Associates Test (RAT) to study participants. The test measures the creative potential by presenting 3 basic words that are linked to a fourth word that the participant must provide.
In the study, RAT was offered to 56 participants. 24 people took the test before starting a hike with a backpack and the remaining 32 people took the test around the 4th day of their hiking expedition.
The result was amazing. The researchers found that with only 4 days of immersion in nature, the test performance was improved by 50%!
3. Nature improves our brain function
If you’re a city-dweller, you probably think: “I’d love to get a creative boost from nature, but I can’t sneak out of my office…”.
Good news! You don’t have to leave your office to enjoy nature. You can “derive” some of the benefits of nature simply by looking at a screen saver from a beautiful natural scenery.
In a study published by the journal Environmental Psychology, participants were given a tedious computer task to perform with the Sustained Attention Response Task (SART) test.
Researchers found that when the task was interrupted with 40 seconds of displaying an image of grass and flowers, brain function was improved.
Specifically, participants had fewer fluctuations in response time, made fewer errors, and were more attentive!
4. Nature helps fight against stress
Stress is never pleasant… It’s even bad for our physical health.
In fact, the website Psychology Today has rated cortisol-AKA as “Public Enemy No. 1”. Cortisol levels are related to decreased immune function, increased weight gain, heart disease, and higher blood pressure and cholesterol.
Spending time in the wild seems to reduce cortisol. In a Dutch study, participants had a stressful activity to perform. After completing it, they split the group in two.
One group was tasked with reading indoors and the other with gardening outdoors.
Not only were the gardeners in a better mood once their task was completed, but they also had lower levels of cortisol.
If you want to know more about cortisol, I also recommend this article.
5. Nature improves our immune system
Since decades, the Japanese have been engaged in an activity of “forest bathing”, the practice of escaping into the forest to relax and recharge their batteries.
When the researchers finally decided to examine this phenomenon, they found that “swimming” in the forest had incredible immunity benefits.
Let’s consider the study. Researchers carried out tests on healthy men after a 2-hour walk in the forest and 2-hour walk in the city.
They drew blood samples immediately after the two walks, 7 days later and 30 days later.
The walk in the forest showed an increase in the activity of killer cells (those that defeat cancer), while walking in the city had no effect.
Perhaps more surprisingly, the effects of the forest walk were still present 30 days later. The study was also conducted on women and produced similar results.
“A nature walk is more beneficial than a city walk.”
It is clear that spending time in nature not only improves our mood, it also benefits our overall health. It only takes a short time outdoors to enjoy these advantages.
Research shows that being outside in nature for 20 minutes a day significantly improves our standard of living.
However, if you can’t get out, don’t despair – view a picture of greenery or turquoise waters of a lush island instead. In the future, this could become what doctors will prescribe!
Do you have experiences to share on how to spend time in nature to stimulate your creativity or well-being? Feel free to leave a message in the comments below!