Reprint – Electric Lights Alter Daily Rhythms


Photo credit: Dana Le via Flickr

I wrote an article entitled I Love Nightshift awhile ago. It is true, and now I know why I felt so healthy working on the lighthouse – lack of electric lights! It may not be for all people, but it did work for me. Working the night shift was done mostly in the dark as we had to watch for fog, visibility markers, lights from ships, flares, sea conditions, clouds – all only visible in the dark without electric lights.

The title and text for this article are from website.

Electric Lights Alter Daily Rhythms

Humans’ circadian clocks become skewed when they are exposed to electric lights but revert to a schedule more in tune with the sun when they go camping.

By Kate Yandell | August 6, 2013

Long-term exposure to electric lighting has fundamentally altered humans’ circadian rhythms, according to a study published in Current Biology last week (August 1). But a week camping away from electric lights swiftly reset eight study participants’ circadian clocks.

“What’s remarkable is how, when we’re exposed to natural sunlight, our clocks perfectly become in sync in less than a week to the solar day,” coauthor Kenneth Wright, a University of Colorado Boulder integrative physiologist, said in a press release. Read more . . .

First seen in a Facebook article, and later in LiveScience.