tag:blogger.com,1999:blog-2877698188774561460.post7394022975964415115..comments2023-11-06T17:59:14.655+02:00Comments on Eco R Geo: Το κάμπινγκ επανασυντονίζει το βιολογικό ρολόιantixronoshttp://www.blogger.com/profile/17321757470762094126noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-2877698188774561460.post-14777358401873970242013-08-10T12:55:55.959+03:002013-08-10T12:55:55.959+03:00Set by the sun: An escape from electrical lights s...Set by the sun: An escape from electrical lights synchs our circadian clocks to the solar day...<br /><br />A weeklong wilderness escape from the electrical lights that illuminate most of our daily lives is enough to reset our internal circadian clocks to synchronize with sunrise and sunset, according to new research from the University of Colorado Boulder.<br /><br />Eight hardy study participants spent a week camping in Colorado’s Eagles Nest Wilderness with just the blaze of the sun and the glow of a campfire for light. At the end of the trip researchers found that the campers’ biological nighttimes shifted to start when the sun went down and end when the sun came back up.<br /><br />The shift happened for all the participants, even though some are night owls in their normal lives and others are early birds.<br /><br />“What’s remarkable is how, when we’re exposed to natural sunlight, our clocks perfectly become in synch in less than a week to the solar day,” said CU-Boulder integrative physiology Professor Kenneth Wright, who led the study.<br /><br />Electrical lighting, widely available beginning in the 1930s, has affected our internal circadian clocks, which tell our bodies when to prepare for sleep and when to prepare for wakefulness. The ability to flip a switch and flood a room with light allows humans to be exposed to light much later into the night than is possible naturally.<br /><br />Even when people are exposed to electrical lights during daylight hours, the intensity of indoor lighting is much lower than sunlight and the color of electrical light also differs from natural light, which changes shade throughout the day.<br /><br />To quantify the effects of electrical lighting, a research team led by Wright, and including undergraduate and doctoral students, monitored the study participants for one week as they went about their normal daily lives. The participants wore wrist monitors that recorded the intensity of light they were exposed to, the timing of that light, and their activity, allowing the researchers to infer when they were sleeping.<br /><br />At the end of the week, the researchers also recorded the timing of participants’ circadian clocks in the laboratory by measuring the presence of the hormone melatonin. The release of melatonin is one of the ways our bodies signal the onset of our biological nighttime. Melatonin levels decrease again at the start of our biological daytime.....http://www.colorado.edu/news/features/set-sun-escape-electrical-lights-synchs-our-circadian-clocks-solar-day#sthash.C1OCFuCU.dpuf<br />1/8/13Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2877698188774561460.post-48741219264557570772013-08-01T21:59:34.401+03:002013-08-01T21:59:34.401+03:00Camping Syncs Circadian Rhythm: One Week In the Wi...Camping Syncs Circadian Rhythm: One Week In the Wilderness Adjusts Natural Body Clock...<br /><br />If your sleeping patterns are out of sync, the best was to reset your internal circadian clock is an escape into the wilderness for a week, according to a University of Colorado Boulder news release.<br /><br />Eight participants in a small study spent a week camping in Colorado's Eagles Nest Wilderness using just the sun and glow of a campfire for light.<br /><br />"At the end of the trip researchers found that the campers' biological nighttimes shifted to start when the sun went down and end when the sun came back up," the University said in a news release. <br /><br />The change happened in all study participants; those who were self-proclaimed "night owls" turned into "early birds."<br /><br />"What's remarkable is how, when we're exposed to natural sunlight, our clocks perfectly become in synch in less than a week to the solar day," said CU-Boulder integrative physiology Professor Kenneth Wright, who led the study.<br /><br />Electrical lighting became popular in 1930s, but has negatively affected the body's circadian rhythm, which tell us when to fall asleep and when to stay awake......http://www.hngn.com/articles/9142/20130801/camping-syncs-circadian-rhythm-one-week-wilderness-adjusts-natural-body.htm<br />1/8/13Anonymousnoreply@blogger.com