Dose of nature is just what the doctor ordered

Dose of nature is just what the doctor ordered
Enjoying nature. Credit: The University of Queensland

People who visit parks for 30 minutes or more each week are much less likely to have high blood pressure or poor mental health than those who don't, according to new research by Australian and UK environmental scientists.

A study led by The University of Queensland (UQ) and the ARC Centre of Excellence for Environmental Decisions (CEED) suggests people might need a minimum "dose of nature".

UQ CEED researcher Dr Danielle Shanahan said parks offered health benefits including reduced risks of developing heart disease, stress, anxiety and depression.

"If everyone visited their local parks for half an hour each week there would be seven per cent fewer cases of depression and nine percent fewer cases of high blood pressure," she said.

"Given that the societal costs of depression alone in Australia are estimated at $A12.6 billion a year, savings to public health budgets across all health outcomes could be immense," she said.

UQ CEED researcher Associate Professor Richard Fuller said the research could transform the way people viewed urban parks.

"We've known for a long time that visiting parks is good for our , but we are now beginning to establish exactly how much time we need to spend in parks to gain these benefits," he said.

"We have specific evidence that we need regular visits of at least half an hour to ensure we get these benefits."

Dr Shanahan said 40 per cent of Brisbane residents did not visit an urban park in a typical week.

"So how can we encourage people to spend more time in green space?" she said.

"We need more support and encouragement of community activities in natural spaces.

"For example, the Nature Play programs in Queensland, Western Australia and South Australia provide heaps of ideas for helping kids enjoy the great outdoors.

"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."

The research is published in Scientific Reports. The research team included scientists from UQ's School of Public Health, the University of Exeter, and CSIRO Land and Water.

More information: Scientific Reports, DOI: 10.1038/srep28551
Journal information: Scientific Reports

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Jun 24, 2016
That's just a classic example of leaping to a conclusion based on a faulty correlation. Who has the time and the means to visit parks? Well, those not critically ill, drug addicts (unless they live there), people working three jobs, mothers stressed out dealing with eight kids and no father, etc. etc. Of course people visiting parks are healthier. Because . . . they're healthier.

Jun 25, 2016
zorro6204, your point is of course very valid, but it is nevertheless a very reasonable assertion that nature at minimum improves mood - this point shouldn't be lost.

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