James Osmond
But research shows human vitality depends on the natural environment. We need clean air and water, as well as plenty of time outside, to live happily and healthily.
Christopher Hopefitch
A recent study found children who play in a forest-like environment for one month develop more diverse microbiomes and signs of a better-regulated immune system.
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The finding jibes with the biodiversity hypothesis: contact with natural environments enriches the human microbiome, promotes the immune system, and protects from allergies and inflammation. More research is needed to confirm the theory, but the early evidence is promising.
Chris Clor
Without time in nature, people may experience chronic stress, which is tied to digestive problems, headaches, heart disease, sleep problems, and weight gain.
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The quality of evidence for these links varies, but living in greener urban areas is tied to lower odds of cardiovascular disease, obesity, diabetes, being hospitalized for asthma complications, mental distress, and ultimately, mortality.
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In a 2016 study, people with chronic, widespread pain who engaged in forest therapy reported significant decreases in pain and depression, and improvement in health-related quality of life.
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In 2005, University of Pittsburgh researchers reported that people who had spinal surgery experienced less pain and stress and took fewer pain medications during recovery if they were exposed to natural light.
Sunlight is linked to vitamin D production, the release of nitric oxide, production of beta-endorphins, and regulation of circadian rhythms. This means a better night's sleep and better mood can come from venturing into nature and basking in sunlight.
Charles Harker
Spending time in nature is relatively easy. All it takes is a bit of motivation to step out of the home and into the great outdoors. Experts recommend 120 minutes of nature-time a week.
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