Pulse June 2017 | Page 19

“...living in our modern environments contributes to late circadian timing regardless of season and that a weekend camping trip can reset our clock rapidly.” A Camping Trip Might Help You Sleep e all know lack of sleep can be a huge productivity killer. When our sleep cycle is off or we aren’t getting nearly enough Z’s, we can feel the effects begin to take a toll on our work performance. So how can we reset? According to researchers reporting in Current Biology in February 2017, a camping weekend might do the trick. “Late circadian and sleep timing in modern society are associated with negative performance and health outcomes such as morning sleepiness and accidents, reduced work productivity and school performance, substance abuse, mood disorders, diabetes, and obesity,” says Kenneth Wright of the University of Colorado Boulder and lead contact in the study. “Our findings demonstrate that living in our modern environments contributes to late circadian timing regardless of season and that a weekend camping trip can reset our clock rapidly.” To conduct the study, Wright and his team sent five active people camping for a week in the chilly Colorado winter, right around the time of the winter solstice when the days were at their shortest — no flashlights or cell phones allowed — and watched what would happen to their sleep and hormonal rhythms. W With increased time spent outdoors, people in the study started going to bed at a more reasonable hour. Their internal clocks, measured by the timing of when melatonin levels began to rise in their bodies, shifted more than two and a half hours earlier. Their sleeping patterns followed these changes in melatonin levels and people went to sleep earlier. The researchers didn’t stop there. They were curious whether a camping trip in the summer would also shift the clock, and it did. This time, they sent nine active people camping while another five stayed at home. A weekend spent camping prevented the typical weekend pattern of staying up late and sleeping in and prevented individuals’ circadian clocks from being shifted even later. The findings show that people are responsive to seasonal changes in daylight just as other animals are. While our modern conveniences may leave us out of synch, our clocks can be readily reset with light exposure. If a person wants to go to bed at an earlier hour, then a weekend spent camping could be just the thing, Wright says. So pack up the gear and head into the wilderness for a weekend to reset your clock and get your productivity back on track. n June 2017 ■ PULSE 17