Each year on 5th June, millions around the globe come together to celebrate World Environment Day—a day dedicated to encouraging awareness and action for the protection of our planet. But while we often associate environmental causes with climate change, recycling, or conservation, there’s another compelling reason to protect the natural world: our mental health.
In today’s fast-paced, digitally saturated world, the call to reconnect with nature has never been more important. For Australians, blessed with vast coastlines, rich bushlands, and diverse ecosystems, World Environment Day offers a timely reminder not only to preserve our environment, but also to embrace it as a source of psychological well-being.
A growing body of research has shown that spending time in nature can significantly benefit our mental health. Whether it’s a walk through the bush, a dip in the ocean, or simply sitting under a tree in your local park, engaging with the natural world has been linked to:
So, how exactly does nature work its magic on our minds?
One of the most well-documented benefits of nature is its ability to reduce stress. Studies have found that exposure to green spaces can lower cortisol levels (the body’s primary stress hormone), reduce heart rate, and promote a sense of calm. Unlike urban environments—often characterised by noise, traffic, and overstimulation—natural settings engage our attention in a gentle, restorative way. This concept, known as attention restoration theory, suggests that nature provides a mental break from the constant demands of modern life.
Think about the last time you walked barefoot on the beach or stood silently in a forest. That quiet sense of awe, the rhythmic sounds of waves or birdsong—these experiences ground us in the present moment and help soothe our overstimulated nervous systems.
Nature doesn’t just relieve stress—it actively boosts our mood. Exposure to sunlight increases levels of serotonin, a neurotransmitter that contributes to feelings of happiness and well-being. This is particularly important in combatting seasonal affective disorder (SAD), a type of depression related to changes in seasons and reduced sunlight.
In Australia, where sunny skies are plentiful, we have a unique opportunity to harness the mental health benefits of the outdoors. Even a brief lunchtime walk in the sun can offer a mood-lifting boost and help regulate sleep cycles by supporting healthy melatonin production.
Spending time outdoors has been shown to reduce symptoms of anxiety and depression. One landmark study by Stanford University found that participants who walked for 90 minutes in a natural setting showed decreased activity in a part of the brain associated with rumination—a common feature of depression.
Nature also offers a space for mindfulness—a practice widely recognised for its role in managing mental health. Whether it’s watching waves crash, observing wildlife, or feeling the wind on your skin, nature encourages us to be present, anchoring us in the here and now.
Beyond its calming effects, nature can also stimulate our creative thinking. Being in natural environments has been found to enhance problem-solving skills and spark imagination. Disconnecting from technology and immersing ourselves in natural beauty allows our brains the freedom to wander, make new connections, and think more expansively.
This is particularly valuable for professionals working in creative industries, students, or anyone seeking a mental “reset” from routine thinking patterns. Next time you’re stuck on a problem, try taking a walk outside—you may be surprised at how quickly inspiration strikes.
While nature can offer solitude and personal reflection, it also serves as a powerful social connector. Group activities such as hiking, gardening, or beach clean-ups provide opportunities for meaningful connection—something that’s vital for mental health.
In Australia, there are countless community initiatives centred around the environment, from Landcare groups to local bushwalking clubs. Participating in these activities not only supports environmental conservation but also nurtures a sense of belonging and purpose.
You don’t need to live near a national park to benefit from nature. Here are some simple ways to make nature a regular part of your mental wellness routine:
This World Environment Day, let’s expand the conversation beyond climate change and carbon footprints. Let’s talk about the human side of environmental care—the way the earth takes care of us.
Australians are uniquely positioned to embrace the outdoors, yet many of us still spend the majority of our time indoors, behind screens. As we mark World Environment Day on 5th June, why not take the opportunity to step outside—breathe in the fresh air, feel the earth beneath your feet, and reconnect with the natural world that sustains us in so many ways?
Because in protecting nature, we protect our own mental well-being too.
Spending time in nature can be a helpful part of your mental health toolkit—but you don’t have to go it alone.
At CBT Professionals, our team of registered psychologists offers evidence-based therapy tailored to your unique needs. Whether you’re dealing with depression, anxiety, or life stressors, we’re here to help you feel better and live well.
Helensvale: (07) 5551 0251
Mount Gravatt: (07) 3102 1366
Nerang: (07) 5668 3490
Disclaimer: This blog post is for informational purposes only and is not a substitute for professional medical advice. Always consult your healthcare provider before making changes to your diet or lifestyle.