Did you know that you can lift your mood by spending just a few minutes a day listening to birdsong?
Or that walking barefoot on the ground can help you sleep better, improve your health and boost your happiness? Adding one or two simple nature-full tweaks to your daily routine has been scientifically proven to work wonders for your happiness, strength of mind and general wellbeing.
These are all facts HELLO! has learned while putting together our Nurtured by Nature hub of inspiring content, as part of our HELLO! Happiness project.
Celebrities are already well aware of the benefits of nature for their wellbeing, with many A-listers taking to Instagram to share how they've been nurtured by nature, in honour of World Earth Day.
Christie Brinkley's World Earth Day post
"Here's to you Mother Earth," Christie wrote on Instagram, adding: "Thank you for giving us everything we could ever want or need to sustain us."
She continued: "From sustenance to extraordinary beauty and wonders! You are the most generous planet in the whole universe."
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Christie then reminded fans: "I can only hope Earthlings learn to treat you as well as you treat us!" adding an Earth, recycling, and green heart emoji.
Lily Collins' World Earth Day post
Alongisde a photo of herself in the great outdoors, Emily in Paris star Lily Collins posted an emotive message.
"Feeling grounded and grateful this #EarthDay. Spending time in nature always makes me feel at home and helps to connect me to what really matters, reflecting on all the beautiful parts of being alive. Hope you all celebrate #EarthDay today by spending a little bit of time outside smiling, wherever you are…"
Princess Eugenie's World Earth Day message
Along with King Charles, Princess Eugenie is one of the most vocal members of the royal family when it comes to looking after our planet, even sharing that she tries to live in a plastic-free household.
Eugenie took to Instagram on Saturday in honour of World Earth Day and posted a sweet photo of her son, August, standing next to Princess Beatrice's daughter Sienna during a family trip to London Zoo.
Alongside the image, Eugenie wrote: "It's World Earth Day and today is all about celebrating our planet and people doing amazing things that help protect it. "
Sarah Ferguson's Earth Day message
Eugenie clearly takes after her mother, Sarah Ferguson, in her love of all things eco. Fergie also dedicated a slot on her social media grid to World Earth Day, writing: "It seems that our planet is trying to speak to us. We don't just need to listen, we need to speak up for her, for our grandchildren's generation, and take action."
Sandringham, one of the official royal residences, also marked the day with an Instagram post, encouraging visitors to make their way to the estate in an eco-friendly way.
"Earth Day is a time to reflect on our impact on the planet and take steps towards protecting our environment. Join us in our effort to change our impact by making small changes such as choices in the way you travel to visit us."
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Kate Hudson's World Earth Day post
Goldie Hawn's daughter paid tribute to our planet in a simple way, posting a colourful graphic simply captioned: "We love you [world emoji]."
Salma Hayek's World Earth Day message
Fellow actress Salma Hayek made her passion for the planet known too, sharing a photo of herself gardening, captioned: "Honouring the Earth planting with my friend Rebecca Oppenheime."
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Ginger Zee's World Earth Day post
TV star Ginger Zee honored the earth by writing on Instagram: "The gratitude I have for this earth we live on is immense. Happy Earth Day everyone. Every day is earth day."
Elle Macpherson's World Earth Day message
Supermodel Elle Macpherson impressed followers with a gorgeous seaside photo, captioned: "When you realise earth and heart are spelt with the same letters, it all starts to make sense."
Ryan Seacrest's World Earth Day plea
American Idol star Ryan Seacrest took the opportunity to plead with his fans to look after the world.
"Earth is a beautiful place, let's do as much as we can to keep it that way," he wrote, alongside a photo of himself holding a reusable water bottle.
"That's why @pathwater & @insidenatgeo are working together to help protect the planet. Checkout their collaboration and see how you can be gifted their limited edition bottle. Happy #EarthDay!" he added.
Visit our HELLO! Happiness Hub for our Nurtured by Nature content