The Health Benefits of Being in Nature
If you’ve ever taken a stroll in a park or walked through a forest and felt more at ease, you’re not just imagining it—it’s rooted in biology. Spending time outdoors can lead to biological changes like reduced stress hormones, lower blood pressure, and improved gut health. The good news? You don’t need a long hike to reap these benefits; even a brief 20-minute walk can make a significant difference. So, consider a quick lunchtime escape to a nearby park. It can be refreshing for both body and mind.
Here are four ways nature can boost your health.
1. You Unconsciously Relax
When surrounded by greenery, the scent of pine, and the sounds of rustling leaves or birds, your autonomic nervous system responds almost immediately. This could happen during a casual visit to your local park. Baroness Kathy Willis, a biodiversity expert at Oxford University, notes that such environments lower blood pressure and promote a slower heart rate. A UK study with nearly 20,000 participants showed that those spending at least 120 minutes weekly in natural settings reported better health and psychological well-being. Some areas are even experimenting with green social prescribing to tap into these benefits, leading to happier lives.
2. Your Hormones Reboot
Nature not only relaxes the mind, but it also recalibrates our hormonal systems. According to Willis, time outdoors reduces levels of cortisol and adrenaline—hormones typically associated with stress. One intriguing study found that individuals in a hotel room inhaling Hinoki (Japanese cypress) oil experienced noticeable drops in adrenaline and boosts in natural killer cells, which fight viruses. Even weeks later, their immune response remained elevated. Prof. Ming Kuo emphasizes that a weekend in nature can notably enhance our immune systems, showing lingering effects long after returning home.
3. Smell is a Powerful Sense
The act of inhaling the scent of nature can be just as powerful as visual or auditory stimuli. The aromas from trees and soil release organic compounds that, when inhaled, can enter your bloodstream. For instance, just the scent of a pine forest can induce calmness within 20 seconds, with effects lasting around ten minutes. Interestingly, even infants without prior associations to these smells exhibited calming reactions to pine scents.
4. Gets Good Bacteria into Your Gut
Nature can also positively influence your gut microbiome. Soil and plants are rich in beneficial bacteria—similar to those found in probiotics. Prof. Kuo’s research highlights that inhaling these natural compounds can improve mood and health. The antimicrobial substances released by plants may even support disease resistance. Dr. Chris van Tulleken sees nature as a crucial environment that boosts immune function, encouraging practices like letting children play in the dirt to benefit their health.
Bring Nature to You
Not everyone has the chance to visit natural settings frequently, but that doesn’t mean you’re out of luck. Even small elements of nature can create positive changes at home. Willis notes that flowers, particularly white or yellow roses, can enhance calmness. Using diffusers with relaxing essential oils like lavender can also help create a soothing atmosphere. In cases where access is limited, simply a picture of a forest or looking at greenery can trigger similar calming responses and help lower stress.
Prof. Kuo emphasizes that every small bit counts. So, whether or not you can get to the woods, integrating elements of nature into your life can still bring significant benefits.
