Dr Richard Fuller of Australia's National Environmental Research Program's (NERP) and University of Queensland says that research worldwide continues to discover the health benefits of being in nature. "For example, spending ten minutes in a park every day - even when we're not exercising in it - has been shown to lower our blood pressure."
New research from NERP shows that despite the abundance of parks in Australian cities, only 60 per cent of the urban population are using these facilities in any week.
This means that 40 per cent of us are missing out on the vast array of health benefits that parks offer, says Dr Danielle Shanahan of NERP and the University of Queensland.
Another study based in China found that a person's stress was significantly reduced after they exercise in a forest, compared with indoors. Related research in Switzerland also showed that exercising in parks reduces stress-induced headaches - the effect was the same if the person exercised in a forest.
People who visit local parks also feel more connected to their community, Dr Shanahan says.
"With all these health benefits, parks have enormous potential to reduce Australia's healthcare costs," she says. "Depression alone costs Australia more than $12.6 billion each year as well as the massive human cost - if visiting parks can help reduce depression even by one percent, that's a huge gain for Australians.
"This is why we're urging more people to spend more time outdoors - having 40 per cent of the urban population missing out is significant, especially when parks are widely available in our cities."
The Brisbane-based study reveals that frequent park visitors make longer visits, spend much more time in their yards, and often travel further to green spaces than less frequent park users. They are also slightly younger and have a higher level of formal education.
"Research in other countries has shown that people who live in disadvantaged areas often have less access to parks, and this could be one of the reasons some people visit them less. But that's not the case in Australia," says Dr Shanahan. "We actually found that the affinity of Australians towards nature, instead of just the availability of parks, determines how much time we spend with nature."
"Our children especially benefit from spending more time outdoors. Kids who grow up experiencing natural environments may benefit developmentally and have a heightened environmental awareness as adults than those who don't."
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