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Camping Converts ‘Night Owls into Early Birds’

August 2, 2013 by   - () Leave a Comment

Putting down your phone and living for a week with nothing but sunlight and campfires may bring your body clock in sync with nature’s rhythms, a small study suggests.

And, researchers found, even avowed night owls turn into early birds after a week of camping in the woods with no sources of artificial light — including smartphones, computers and TVs, according to U.S. News & World Report.

“We’ve already known that artificial light is keeping us up at night,” said lead researcher Kenneth Wright, of the University of Colorado at Boulder. But this study, he said, was an attempt to “quantify” the effect that light exposure, both artificial and natural, may be having on the human body’s internal “clocks.”

“What we found suggests that it’s not just artificial light that’s keeping us awake,” Wright said. “It’s also a lack of daylight.”

For the study, reported in the Aug. 1 online issue of Current Biology, Wright’s team recruited eight healthy adults who stuck with their normal daily routines for one week, and then spent another week camping together. During the trip, the only lights allowed were sunlight and campfire light.

At the end of each week, the researchers took saliva samples to measure study participants’ melatonin — a hormone that becomes more active in the evening, to help people fall asleep, then drops off in the early morning so they can wake up bright-eyed.

Typically, Wright’s team found that when people were at home they went to bed after midnight, on average, and rose at around 8 a.m. On the camping trip, however, they turned in earlier and rose earlier.

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