We know that #chronotype has been associated with #mental-health - so we looked to see whether it was part of the P-Factor. Congrats to @juanjmv.bsky.social JuanJo Madrid Valero for winning Best Paper 2025 (Institute Catedra del Sueno) academic.oup.com/sleep/articl... @sleep-rhul.bsky.social

Being out of sync in academia: psychological, sleep-related and chronobiological factors associated with burnout in higher education students Academic burnout is a growing concern in university settings, yet research has mainly focused on internalizing symptoms such as depression and anxiety…

•Evening #chronotype was linked to higher #burnout
•Insomnia was associated with higher burnout
•Insomnia mediated associations between internalizing symptoms and academic burnout.

Source: Oldiefan, Pixabay (CC0)

New publication: Female #chronotype relates to lay date but not #fitness in an island population of great tits, by @aureliastrauss.bsky.social, @babimt.bsky.social, @mevisser.bsky.social, and others. #greattits #laydate
doi.org/10.1007/s004...

9 Easy Ways To Become a Morning Person If You’re a Night Owl Raimund Koch/Getty Images Some people are early risers who enjoy waking up early. Others have a sleep chronotype that identifies them as a night owl. If you’re in the latter group, you can be…

9 Easy Ways To Become a Morning Person If You’re a Night Owl  onlinemarketingscoops.com/2026/02/05/e...
.
#sleepchronotype #Chronotype #SleepBetter #sleeproutine #circadianrhythm #HealthySleep #biologyofsleep #sleepscience #restandrecovery #morningvibes #morningroutine #morningmotivation

From the science community on Reddit: Night owl or early bird: Study finds sleep categories aren’t that simple. Scientists identify 5 biological sleep-wake profiles (2 early birds, 3 night owl groups)... Explore this post and more from the science community

Looks like people love to talk about #chronotype!

2000+ likes and close to 100 comments in <24 hours.

www.reddit.com/r/science/co...

Chronotype, Life’s Essential 8, and Risk of Cardiovascular Disease: A Prospective Cohort Study in UK Biobank | Journal of the American Heart Association

Individuos con un cronotipo vespertino pueden beneficiarse particularmente de las intervenciones dirigidas a los factores de riesgo CV #Chronotype #CVD www.ahajournals.org/doi/10.1161/...

Freshly lit: Do psychiatric symptoms fluctuate across the day? Do the patterns differ by chronotype? A recent study by Balter et al. explores these questions in a sample of N = 515 adults.

💡 www.nature.com/articles/s41...

#mentalhealth #earlybird #nightowl #chronotype

Being a night owl may increase your cardiovascular risk – BioNews Central A new study found that adults who stay up late and are active at night were more likely to have poor cardiovascular health scores than people with more typical sleep-wake timing. ...

A new study found that adults who stay up late and are active at #night are more likely to have poor #CardiovascularHealth scores than those with more typical #sleep -wake schedules.
#Chronotype #SleepWakeCycle #CardiovascularDisease #CardiovascularRisk

Sleep expert's animal 'chronotype' quiz is deeply insightful for understanding our sleep patterns Have you ever wondered why some people seem to fall fast asleep by 10:00 p.m. and are up at the crack of dawn, while others are just getting their night started at midnight? You've probably heard terms like "night owl" and "early bird" and assumed they were related to a person's age or lifestyle. What some people may not realize is that this tendency to go to bed or wake up at certain times is often genetically etched in our DNA through what's known as a "chronotype." It not only affects our sleep–wake cycles but can also influence our overall health in a plethora of ways. According to UCLA Health: "[It's] the subjective way you experience your circadian rhythm. In other words, your 24-hour daily cycle may or may not align with sunrise and sunset, depending on when your body naturally wants to wake up and go to sleep. Your chronotype determines your peak time for concentration, physical performance and creativity." Dr. Breus explains what chronotypes are. www.youtube.com, Sleep Doctor Danielle Pacheco of Sleep Foundation writes that a person's chronotype affects far more than just sleep: "In addition to regulating sleep and wake times, chronotype has an influence on appetite, exercise, and core body temperature. It is responsible for the fact that you feel more alert at certain periods of the day and sleepier at others." The good news, according to UCLA Health, is that our body's natural proclivities are never inherently right or wrong: "You probably have a good idea about when you are likely to be tired and when you tend to have the most energy. We often fight those natural inclinations due to work obligations, family schedules or fear of missing out. But learning to work with, and not against, your chronotype can improve your sleep quality. Getting better sleep enhances your mood, productivity and overall health." The key is to first identify your type. Clinical psychologist Dr. Michael Breus, founder of Sleepdoctor.com, created a popular quiz to help people understand their chronotypes and sleep scores. After a short series of questions covering everything from snoring and anxiety to caffeine intake, the quiz-taker is assigned an animal that represents their chronotype. Participants may lean toward the "Bear, Wolf, Lion, or Dolphin." Based on the answers, Breus's website offers suggestions for healthier sleep habits. For example, I'm a "Dolphin" who snores, and the site recommends specific pillows that may help open the air passages in my throat and nose. Here's a breakdown of the animal chronotypes, which Breus notes "can and probably will change throughout your life." ## THE DOLPHIN Dr. Breus explains the Dolphin chronotype. www.youtube.com, Sleep Doctor "Dolphins make up about ten percent of the population and it turns out, can be pretty erratic sleepers," Breus shares. Pacheco explains that Dolphins are the insomniacs of the bunch: "The dolphin chronotype is based on the ability of real dolphins to stay alert even while sleeping." ### Attributes: "Intelligent A little high-strung Sensitive Often easily disturbed by noise or light." Breus points to some good news: "People with this chronotype have an excellent window of productivity. They tend to get things done between 10:00 a.m. and 2:00 p.m. every day." ### Famous Dolphins: William Shakespeare Richard Branson Steve Aoki (whom Breus says is a friend) Breus suggests sleeping from around midnight to 6:30 a.m. and exercising in the morning. ## THE LION Dr. Breus explains the Lion chronotype. www.youtube.com, Sleep Doctor Breus explains that Lions are the "early to bed, early to rise prototype." They make up about 15 percent of the population, wake up around or just before 5:00 a.m., and are "most productive in the hours before noon." ### Attributes: "Go-getters Leaders (Often) COOs of companies." Breus also adds that Lions value exercise and sticking to plans. ### Famous Lions: Maya Angelou Benjamin Franklin Kelly Ripa For Lions, Breus suggests waking up early and "winding down early in the evening." He also believes Lions should exercise early in the morning to give them a "burst of energy" throughout the day. ## THE WOLF Dr. Breus explains the Wolf chronotype. www.youtube.com Making up about 15 to 20 percent of the population, the Wolf chronotype is also known as the classic "night owl." ### Attributes: "Crave novelty Risk takers Don't follow patterns" Breus mentions their tendency to be socially introverted, but notes that "not all the characteristics are gonna fit all of you." ### Famous Wolves: Elon Musk Jay Leno Rachael Ray The Wolf is "most productive between noon and 4:00 p.m.," so a later start to the day is advised, Breus notes. Because most social and work schedules follow a fixed pattern, the Wolf chronotype may face challenges due to its tendency to stay up late or wake up later. Breus says there's no need to worry. "There are ways to accommodate your sleep needs," he explains, recommending exercise in the early evening and limiting caffeine intake to once a day. ## THE BEAR Dr. Breus explains the Bear chronotype. www.youtube.com Breus says most Americans fall into the Bear chronotype, estimating it accounts for about 50 to 55 percent of the population. He adds that "the whole world is adapted to a Bear's schedule." Breus proclaims that Bears have the healthiest sleep patterns, adding, "You guys are the glue that keeps society together." ### Attributes: "Tendency to be cautious Extroverted Friendly Very easy to talk to" ### Famous Bears: Stephen King Jeff Bezos Arianna Huffington Breus recommends that Bears "wind down in the early evening," with a target bedtime of around 10:00 p.m. He also suggests exercising before 1:00 p.m. to allow enough time for activity during the day. In addition, he advises Bears to wait at least 90 minutes after waking before having coffee or tea and to "stop caffeinated intake by about 2:00 p.m."

Chronotype and depression: A global systematic review and meta-analysis Background: Depression persists as a substantial contributor to global disability burdens. Emerging evidence implicates circadian rhythm variations in…

#Chronotype & #depression: Global systematic review & meta-analysis

• Evening chronotype is linked to 83% increased depression risk, highlighting circadian disruption as critical potentially modifiable variable
• Morning chronotype demonstrates consistent protective effects, with 12% risk reduction

STOP SLEEPING 8 HOURS: Why Oversleeping Shrinks Your Brain (The 7-Hour Rule) You’ve been lied to. The "8-Hour Rule" might actually be making you dumber. For decades, we’ve been told that 8 hours is the magic number for health. But what if that extra hour is actually aging your brain? In this episode, we shatter the traditional sleep myths and dive into the groundbreaking research revealing why 7 hours is the new gold standard for peak cognitive performance. We explore the scary science of the "U-Shaped Curve," proving that oversleeping can be just as dangerous as sleep deprivation—leading to physical brain shrinkage and mental fog. But sleep isn't just about the clock; it's an active reconstruction project. We take you inside your brain at night to witness Neural Replay (how you solidify memories) and Synaptic Downscaling (how your brain "takes out the trash" to keep you sharp). If you are tired of waking up groggy despite spending hours in bed, this episode is your wake-up call. We discuss why aligning with your Chronotype and focusing on sleep quality beats quantity every single time. In this episode, you will learn: - Why 7 hours is scientifically better than 8 for most adults. - The biological dangers of "Sleep Drunkenness" and oversleeping. - How your brain physically rewires itself via synaptic downscaling. - Why you need to stop treating sleep as passive downtime. 🎧 Press play to optimize your rest and upgrade your brain. Did this episode wake you up to the truth? Hit the Follow button and rate us 5 stars! Share this with your friend who sleeps till noon—you might just save their brain.

📣 New Podcast! "STOP SLEEPING 8 HOURS: Why Oversleeping Shrinks Your Brain (The 7-Hour Rule)" on @Spreaker #biohacking #brainhealth #brainpower #chronotype #circadianrhythm #cognitiveperformance #focus #healthfacts #hubermanlab #insomnia #lifehacks #memory #mentalhealth #neuroscience #podcast

May be of interest @socpedresearch.bsky.social @e2e-spr.bsky.social @ucsf-ihps.bsky.social @ucsfhealth.bsky.social

#ucsf #ucsfhealth #adolescenthealth #pediatrics #publichealth #sleephealth #sleepdisparities #teensleep #chronotype #socialjetlag #sleep

Night Owls Versus Early Birds: Who’s Smarter? Being a night owl might give your brain a slight edge, but there's a cost.

Association between Chronotype, Glucose Metabolism and Type 2 Diabetes at Population Level - A Systematic Review A chronotype is an expression of an individual circadian rhythm associated with sleep and physical activity. It categorizes people as morning, interme…

Based on the current literature, the evening #chronotype appears to be positively associated with adverse changes in glucose #metabolism, such as increased fasting glucose and insulin resistance, as well as type 2 #diabetes.

An evening chronotype is associated with the incidence and progression of diabetic retinopathy in people with type 2 diabetes mellitus: a cohort study - Diabetologia Aim/hypothesis Chronotype reflects an individual’s circadian rhythm, which may be associated with lifestyle habits and metabolic profiles. A few studies have shown that disruptions in circadian rhythm...

People with #T2D and evening #chronotype face significantly higher risk of developing/worsening diabetic #retinopathy. Changing #chronotype isn’t just a lifestyle tweak–it could be a game-changer for protecting vision and boosting #glucose metabolism link.springer.com/article/10.1...

Your Sleep, Your HEALTH: Unpacking the Social and Biological Factors That Keep You Up. In today's episode we're investigating the myriad factors - from biology to environment - that shape sleep health across the lifespan. We explore how being an evening chronotype significantly increases the risk of insomnia1. We also look at the financial stress and socioeconomic factors that lead to poor sleep among college students, and the crucial role of family dynamics and parental rules in shaping adolescent sleep patterns. Additionally, we discuss the dangers of late-life sleep medication use being linked to increased falls risk in older adults and how short or long sleep duration may predict higher acute care utilization. Finally, we analyze the common, often pharmacological, advice circulating on internet forums for insomnia. The sources provided for this conversation are as follows: 1. Excerpts from "Association-between-insomnia-symptoms-and-chronoty.pdf" [1–56] 2. Excerpts from "College-students’-socioeconomic-background-and-sle.pdf" [57–98] 3. Excerpts from "Cover-2--Editorial-Board_sleh.pdf" [99–109] 4. Excerpts from "Dreamscapes-and-sleep-science_2025_sleh.pdf" [110–112] 5. Excerpts from "Family-implication-in-adolescents’-sleep--A-qualit.pdf" [113–166] 6. Excerpts from "Late-life-sleep-medication-use-associated-with-inc.pdf" [167–222] 7. Excerpts from "Maternal-reported-shorter-total-sleep-duration-but.pdf" [223–271] 8. Excerpts from "Measurement-properties-of-the-SUNRISE-Study-Parent.pdf" [272–326] 9. Excerpts from "Sleep-duration-associated-with-acute-care-utilizat.pdf" [327–381] 10. Excerpts from "Sleepless-in-cyberspace--A-thematic-analysis-of-on.pdf" [382–429] 11. Excerpts from "Social-epidemiology-of-bedtime-screen-use-behavior.pdf" [430–484] 12. Excerpts from "Table-of-Contents_sleh.pdf" [485–491] 13. Excerpts from "“No-rest-for-me-tonight”--A-social-ecological-expl.pdf" [492–531]

📣 New Podcast! "Your Sleep, Your HEALTH: Unpacking the Social and Biological Factors That Keep You Up." on @Spreaker #acute #adolescents #caregiving #chronotype #college #duration #eveningness #falls #family #financial #health #insomnia #medication #preschoolers #screen #sleep #social #stress

Consistently sleeping against your natural chronotype can have detrimental effects on health. Disrupting your body’s internal clock may increase the risk of sleep disorders, cardiovascular disease, metabolic issues, and even depression. 2/2
#neuroskyence #chronotype #sleep #NightOwl #EarlyBird

Intense exercise performed too close to bedtime might be disruptive for some individuals due to increased body temperature and alertness .
This draws attention to the need for customized #exercise prescriptions that account for a person’s #chronotype and intended objectives
#Circadian

🌞 Are you an Early Bird or Night Owl?
Your body’s rhythm shapes your energy, focus & creativity.
Take our quiz to discover your chronotype and unlock your peak productivity times!
👉 buff.ly/IJzC99l #Quiz #Chronotype #Productivity

Maintaining optimal or optimizing #sleep duration, preserving #napping habits, and transitioning to a morning #chronotype are essential for #dementia prevention

Ever wondered if you are an early bird or a night owl—or something in between? 🐦🌙 Take this quiz to uncover your body’s natural rhythm & find your peak hours! buff.ly/aHj8Kp1 #Chronotype #SleepHealth #Wellness #SelfCare

Chronotypes: quand la biologie dicte l’agenda Adepte de cours matinaux ou d’études vespérales? À l’amorce de la rentrée, savez-vous comment votre rythme biologique influence sommeil, énergie et performance?

#SCIENCES | 🌙🌞 Pourquoi certains carburent le matin et d’autres la nuit?

Selon la professeure en #psychologie Julie Carrier, tout dépend de votre #chronotype, votre horloge biologique influencée par la génétique et la mélatonine.

En savoir plus👇

#sommeil #recherche #umontreal

Chronotypes: Understanding Your Internal Clock A chronotype is your natural inclination to sleep at a certain time. It's essentially your body's internal clock that determines when you feel most alert and when you're most likely to feel sleepy.

#KnowledgeByte: A #Chronotype is your natural inclination to #Sleep at a certain time.

It's essentially your body's internal clock that determines when you feel most alert and when you're most likely to feel sleepy.

knowledgezone.co.in/posts/Chrono...

Chronotype, Sleep Quality and Personality: A Journey Towards Better Mental and Physical Health (CHIME) A neuropsychological study investigating how chronotype (i.e., preference for being awake or asleep at certain times) may influence sleep behaviour, psychological wellbeing, and physical health in men...

"Chronotype, Sleep Quality and Personality: A Journey Towards Better Mental and Physical Health" A multi-centre study on chronotype @satyamchauhan.bsky.social @ccn-brunel.bsky.social #sleep #chronotype #chronobiology

Please take part! Link to survey: brunellifesc.eu.qualtrics.com/jfe/form/SV_...

Circadian Rhythms and Depression in Adolescents: A Comparative Analysis of First Episode and Recurrent-Episode Groups Circadian rhythm disruptions are a hallmark feature of mood disorders. Patients experiencing acute depressive episodes report noticeable changes in their sleep–wake cycles. This research explains the ...

A clear shift towards #evening-type behaviors and more pronounced biological rhythm disturbances are observed as #depression severity escalates, with these associations intensifying alongside recurrent #depressive episodes .
#Circadianrhythms #chronotype
pmc.ncbi.nlm.nih.gov/articles/PMC...

Syncing With Your Chronotype Can Maximize Sleep and Productivity Everything flows more seamlessly when you respect your internal rhythm.

Syncing with your #chronotype can #maximizesleep and #productivity

zurl.co/yNE76

#FinallySocial #ErinAlexander #RealEstateMarketing #InternetMarketing #MarketingTips #LetsGetSocial #BeKind

Translational Sensory and Circadian Neuroscience Unit (MPS/TUM/TUMCREATE) — Light O'Clock (Season 3) – Episode 4: Too early to think?

Too early to think? Why school start times matter for sleep and learning 🎒 ⏰

Another great episode of @lightoclock.bsky.social podcast covering adolescent sleep, circadian rhythms and initiatives aimed at delaying school start times www.tscnlab.org/podcast/s03e04

#chronobiology #chronotype

Influence of sleep and chronotypes: are we adapted to today’s society? - Nature Reviews Neurology Aspects of modern society, such as artificial lighting and rigid schedules, create ‘social jetlag’ — a mismatch between biological chronotypes and societal demands. This circadian misalignment particu...

Influence of sleep and chronotypes: are we adapted to today’s society?

#sleep #circadian #chronotype #clock 🧪

doi.org/10.1038/s415...

The influence of chronotype on school adjustment, sleep and somatic and mental health among adolescents – nationwide sample across one school year Evening-type has been previously associated with sleep problems, and mental and somatic health problems among adolescents. We examined how the self-re…

New publication: The influence of #chronotype on school adjustment, sleep and somatic and mental health among Finnish adolescents: www.sciencedirect.com/science/arti...
#PublicHealth #mentalhealth #sleep #circadianrhythms #school

Moon in night sky

Eerie late night outs feels good even to a morning person like me sometimes.

#photography
#nightphotography
#moonphotography
#chronotype