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- ಬದಲಿಗಾಗಿ ಜುವೆಂಟಸ್ ತಾರೆಯ ಕೋಪದ ಹೊರತಾಗಿಯೂ ರೊನಾಲ್ಡೊ ದಂಡವನ್ನು ತಪ್ಪಿಸುತ್ತಾನೆ - ಗೋಲ್ ಇಂಡಿಯಾ
“We know that spending time in nature reduces stress, but until now it was unclear how much is enough, how often to do it, or even what kind of nature experience will benefit us,” said Dr. Mary Carol Hunter, an Associate Professor at the University of Michigan and lead author of this research.
“Our study shows that for the greatest payoff, in terms of efficiently lowering levels of the stress hormone cortisol, you should spend 20 to 30 minutes sitting or walking in a place that provides you with a sense of nature,” added Hunter in the study published in the journal, ‘Frontiers in Psychology.’
To assist healthcare practitioners looking for evidence-based guidelines on what exactly to dispense, Hunter and her colleagues designed an experiment that would give a realistic estimate of an effective dose.
Over an 8-week period, participants were asked to take a nature pill with a duration of 10 minutes or more, at least 3 times a week. Levels of cortisol, a stress hormone, were measured from saliva samples taken before and after a nature pill, once every two weeks.
“Participants were free to choose the time of day, duration, and the place of their nature experience, which was defined as anywhere outside that in the opinion of the participant, made them feel like they’ve interacted with nature. There were a few constraints to minimise factors known to influence stress: take the nature pill in daylight, no aerobic exercise, and avoid the use of social media, internet, phone calls, conversations, and reading,” Hunter explained.
“Building personal flexibility into the experiment, allowed us to identify the optimal duration of a nature pill, no matter when or where it is taken, and under the normal circumstances of modern life, with its unpredictability and hectic scheduling,” she continued.
To make allowances for busy lifestyles, while also providing meaningful results, the experimental design was novel in other aspects too.
“We accommodated day to day differences in a participant’s stress status by collecting four snapshots of cortisol change due to a nature pill. It also allowed us to identify and account for the impact of the ongoing, natural drop in cortisol level as the day goes on, making the estimate of effective duration more reliable,” said Hunter.
The data revealed that just a twenty-minute nature experience was enough to significantly reduce cortisol levels. But if you spent a little more time immersed in nature experience, 20 to 30 minutes sitting or walking, cortisol levels dropped at their greatest rate. After that, additional de-stressing benefits continue to add up but at a slower rate.
Published: August 30, 2019 11:55 am | Updated:August 30, 2019 12:01 pm