Circadian Sleep Disorders Network is an independent, non-profit, patient advocacy organization. Delayed Sleep Phase Disorder, Non-24, Sleep-Wake Phase Disorder
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Joined March 2013
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Circadian Sleep Disorders Network retweeted
Do people differ in the max-min of daily rhythms in gene expression? This question, avoided for a long time, now tackled in this #JBR paper. Answer: YES! Personal transcriptomes differ in circadian amplitude, even among healthy folks. @SRBR_Outreach journals.sagepub.com/doi/ful…
Circadian Sleep Disorders Network retweeted
Today is #WorldCircadianDay!
Our circadian clocks influence our health. From sleep and metabolism to mood, cognition, and performance. By understanding and respecting our biological rhythms, we can improve health and well-being every day.
#CircadianRhythms #Chronobiology #SleepHealth
Circadian Sleep Disorders Network retweeted
How animals sense Earth’s magnetic field is one of biology’s enduring mysteries.
Researchers in Science have now identified superparamagnetic macrophages in the livers of rock pigeons to be crucial for magnetic sensing. The finding uncovers an unexpected role for immune cells in sensory perception and may fundamentally change our understanding of animal navigation.
Learn more in this week's issue: scim.ag/4uAKQDl
ALT How animals sense Earth’s magnetic field is one of biology’s enduring mysteries. Researchers have now identified superparamagnetic macrophages in the livers of rock pigeons (Columba livia) to be crucial for magnetic sensing. The finding uncovers an unexpected role for immune cells in sensory perception and may fundamentally change our understanding of animal navigation. Photo: Andreas Teichmann/laif/Redux
Circadian Sleep Disorders Network retweeted
Sleep is vital for brain development—especially in children with neurodevelopmental disorders. Disruptions can affect brain function, hormones, metabolism & inflammation, potentially worsening conditions like autism & ADHD. More research = better care. #SleepScience #Neurodevelopment
nature.com/articles/s41582-0…
Circadian Sleep Disorders Network retweeted
New paper out by @MarcoFerr_. We developed a new high-throughput live imaging platform to monitor circadian rhythms in up to 144 brain tissues. We are now using it to screen chronotherapeutics for Alzheimer directly in brain tissue. Exciting times! @UKDRI doi.org/10.1002/advs.75427
Circadian Sleep Disorders Network retweeted
Mental health disorders are closely tied to circadian rhythm disturbances.
Night owls have an 83% higher depression risk.
Being a morning type seems to be protective.
Circadian Sleep Disorders Network retweeted
Research highlight from #JBR!
Clock genes (Bmal1, Per1, Per2) show ~24h rhythms in the dorsal & median raphe of rat brains, suggesting serotonergic systems have intrinsic circadian clocks. This points to a link between clocks and mood-related circuitry: journals.sagepub.com/doi/10.…
Circadian Sleep Disorders Network retweeted
A clock in a bottle? By reconstituting cyanobacterial clock machinery in vitro, researchers uncovered how these biological clocks precisely switch gene expression on and off! @susanksgolden
today.ucsd.edu/story/researc…
Circadian Sleep Disorders Network retweeted
ADHD is a circadian rhythm disorder.
We just published a new paper on the topic.
frontiersin.org/journals/psy…
Circadian rhythm dysfunction is highly prevalent in ADHD
Up to ~75% of patients have delayed sleep and wake timing, and shifting the clock earlier is linked to symptom improvement
I just published a paper on what this means for treatment. Here’s what we found 🧵1/12
ALT https://www.frontiersin.org/journals/psychiatry/articles/10.3389/fpsyt.2025.1697900/full
Circadian Sleep Disorders Network retweeted
Neurological circadian rhythm disorders aren't a sleep-wake schedule that can be changed through habits or entrainment. There's no flexibility like a typical circadian rhythm. Hence the term "disorder" rather than "preference".
Photo: Bruno van der Kraan
ALT White owl standing in green grass.
Circadian Sleep Disorders Network retweeted
Think circadian biology doesn’t matter?
Ask someone with Non–24-Hour Sleep-Wake Rhythym Disorder.
Actually... don’t. They’re too busy trying to function in a world that runs on a clock they can’t follow.
Circadian Sleep Disorders Network retweeted
The AASM has issued a new position statement recognizing sleepiness as a critical patient-reported outcome linked to adverse health outcomes, impaired performance, and reduced quality of life.
Clinicians, researchers, and policymakers are urged to prioritize its evaluation and treatment to advance public health.
🔗 Read the full statement here: hubs.la/Q03hdLq40
Circadian Sleep Disorders Network retweeted
SRBR Public Outreach Fellow Opportunity: conta.cc/42dzr0I
Circadian Sleep Disorders Network retweeted
This is the most important paper in the circadian field in over a decade. A completely new clock component that is evolutionarily conserved. @Eric_E_Zhang @susanksgolden @ @SRBR_Outreach
rdcu.be/efxV8
Circadian Sleep Disorders Network retweeted
We live in 2025. We should never be forced to function on a 9-5 schedule, if it doesn't align with our body's natural circadian rhythm. The cost of sleep deprivation and circadian misalignment lowers productivity and benefits no one.
Photo by Lee Dunican
Circadian Sleep Disorders Network retweeted
🕒 Big leap in #circadian clock research! A Nature Communications study maps 242 clock neurons in fruit flies, uncovering new subtypes, light pathway roles, & links to feeding, mating, & #sleep. Findings may aid therapies for sleep & mood disorders. ow.ly/WlNR50UM4WP
Circadian Sleep Disorders Network retweeted
🕒Nov 24 is Non-24 Awareness Day! #Non24 Day aims to help raise awareness of #Non24HourSleepWakeDisorder, a serious #circadian sleep disorder in which a person's sleep/wake cycle is longer than 24 hours. Share to help raise awareness! Learn more at @CSD_N: circadiansleepdisorders.org
Circadian Sleep Disorders Network retweeted
𝐓𝐨𝐝𝐚𝐲'𝐬 𝐲𝐨𝐮𝐫 𝐋𝐀𝐒𝐓 𝐂𝐇𝐀𝐍𝐂𝐄 𝐭𝐨 𝐫𝐞𝐠𝐢𝐬𝐭𝐞𝐫 𝐟𝐨𝐫 𝐎𝐜𝐭𝐨𝐛𝐞𝐫'𝐬 𝐂𝐨𝐧𝐟𝐞𝐫𝐞𝐧𝐜𝐞 𝐚𝐭 𝐭𝐡𝐞 𝐄𝐀𝐑𝐋𝐘 𝐃𝐈𝐒𝐂𝐎𝐔𝐍𝐓 𝐫𝐚𝐭𝐞! #startschoollater #sleeppeeps #edreform #schoolhealth startschoollater.net/nationa…
Circadian Sleep Disorders Network retweeted
This.
Opinion piece: For too long, animal studies have overlooked #TimeOfDay as a critical biological variable. That needs to change. In PNAS Front Matter: ow.ly/9Vah50SOgYi #CircadianRhythms #SleepWakeCycle #chronobiology
ALT Mouse standing against a clock.
Circadian Sleep Disorders Network retweeted
The influence of sleep chronotypes on cognitive function adds to our understanding of role of sleep in cognitive health. Findings highlight complex interplay between sleep duration, chronotypes & various health & lifestyle factors on cognitive performance. ow.ly/TOqz50SBBmc
