sleep/wake cycle
Blind Cavefish in Mexico Offer Clues to Sleep Regulation
Catherine Offord | Feb 6, 2018 | 2 min read
Two studies identify a signaling pathway that contributes to the fish’s sleeplessness.
Giants of Circadian Biology Win Nobel Prize
Catherine Offord | Oct 2, 2017 | 4 min read
The award in Physiology or Medicine goes to chronobiologists Jeffrey Hall, Michael Rosbash, and Michael Young.
Time, Flies
Anna Azvolinsky | Nov 1, 2016 | 9 min read
By studying the sleep-wake cycle of fruit flies, Amita Sehgal is revealing how the body’s circadian and sleep rhythms are regulated.
How a Sleep-Associated Hormone Affects Murine Tooth Development
Mallory Locklear | Aug 22, 2016 | 3 min read
Disrupting the light/dark cycles of pregnant mice, researchers observe detrimental effects in the mouths of the animals’ pups.
Brain Listens During Sleep
Tanya Lewis | Jun 15, 2016 | 3 min read
People continue to hear and process words during light non-REM sleep, a study shows.
While You Were Sleeping
Ruth Williams | Mar 1, 2016 | 2 min read
Assessing body position in addition to activity may improve monitoring of sleep-wake periods.
Cave Dwellers, 1938
Anna Azvolinsky | Mar 1, 2016 | 3 min read
Renowned sleep researcher Nathaniel Kleitman and a colleague spent a month underground to test the body’s natural rhythms.
The A B Zzzzs
The Scientist Staff | Mar 1, 2016 | 2 min read
An overview of the human sleep cycle
Who Sleeps?
The Scientist Staff and Jerome Siegel | Mar 1, 2016 | 10+ min read
Once believed to be unique to birds and mammals, sleep is found across the metazoan kingdom. Some animals, it seems, can’t live without it, though no one knows exactly why.
A Genetic Root to Seasonal Affective Disorder
Bob Grant | Feb 23, 2016 | 2 min read
Researchers have identified a gene that ties sleeping patterns to the winter blues experienced by many people living at extreme northern and southern latitudes.
GWAS IDs “Morning People”
Catherine Offord | Feb 3, 2016 | 1 min read
In a large genome-wide association study, researchers from 23andMe locate 15 DNA regions associated with people’s preferences for early morning starts.
Circadian Clock Controls Sugar Metabolism
Anna Azvolinsky | Apr 17, 2015 | 2 min read
The body’s circadian rhythm has more of an effect on glucose tolerance than one’s eating and sleeping patterns, a study shows.  
Daytime Sleep Alters Human Transcriptome
Jef Akst | Jan 20, 2014 | 3 min read
A mistimed sleep cycle drastically reduces the number of genes that are expressed in a 24-hour rhythm.
Electric Lights Alter Daily Rhythms
Kate Yandell | Aug 6, 2013 | 1 min read
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.
Feeding Time
Kerry Grens | Feb 1, 2013 | 2 min read
The eating schedule—and not the amount of calories—can make the difference between an obese, diabetic, sick mouse and one with a healthy metabolism.
The Sodium Cycle
Sabrina Richards | Jan 8, 2013 | 3 min read
Researchers uncover weekly and monthly rhythms of sodium retention and excretion in participants of space simulations.