Somnologie (Berl) September 2019 PMID 31534436

Effects of light on human circadian rhythms, sleep and mood.

Christine Blume, Corrado Garbazza, Manuel Spitschan

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Mentions

386
Peak: 17 in Jan 2022
across 5 sources since Aug 2019

Extended reach

855,280
potential audience

Total likes

15,780

Video views

494,288

Mentions per month

Aug 2019 – Nov 2025

Where it's discussed

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AI synopsis

What people are saying

The interpretations often emphasize how natural and artificial light influence sleep and mood, with phrases like 'crucial to mental/emotional state' and 'effects of light on circadian rhythms,' demonstrating both keen interest and recognition of the study's potential impact on health practices. The tone varies from informative to inquisitive, showing a balance of understanding and curiosity about how light affects biological rhythms.

AgreementModerate agreement

Most discussions acknowledge the importance of light's effects on sleep, mood, and circadian rhythms, showing general consensus about the study's relevance.

InterestHigh interest

Many posts express curiosity and highlight the significance of light exposure, especially in relation to sleep and mental health, indicating high interest.

EngagementModerate engagement

The posts include questions, references to specific studies, and suggestions for practical applications, reflecting thoughtful engagement.

ImpactModerate impact

The discussions suggest the publication influences public awareness on light's role in health and may inform behaviors like adjusting light exposure and sleep routines.

Abstract in brief

  • The human circadian system, controlled by the suprachiasmatic nuclei (SCN) in the hypothalamus, is synchronized to the 24-hour day through light signals from the retina, influencing sleep, activity, and overall biological rhythms.
  • Artificial light, especially during evening and nighttime, has significantly altered the natural light environment, potentially increasing the risk of circadian rhythm sleep-wake disorders (CRSWD) caused by misalignment between internal rhythms and external light-dark cycles.
  • While artificial light can disrupt sleep and circadian rhythms, it can also be used therapeutically to improve sleep, mood, and well-being, with research continuing on its effects and applications.]

Top posts

Most liked on X and Bluesky
Mg2+ Papi, the BowTied Mg2+
@Grimhood · X

Effects of light on human circadian rhythms, sleep and mood https://t.co/x8WsXsEI0g The natural light spectrum from sunlight is crucial to your mental/emotional state. https://t.co/Pm4PMniZPg

Jan 22, 2022 · 85 likes · 19 shares · 134,145 followers View post →
Rodri Tanoto (陳曉陽)
@RodriChen · X

Good question. Mengingat circadian rhythm itu dipengaruhi oleh cahaya, pastinya berpengaruh, namun seiring semakin umumnya cahaya artifisial, tidak yakin pengaruhnya sebesar apa. https://t.co/5jdT6EoTm4 https://t.co/tNOAtE4fOi https://t.co/lWL3DOBuqg

Feb 28, 2023 · 66 likes · 10 shares · 31,498 followers View post →
Titiat Scriptor
@titiatscriptor · X

7| Quellen: Q1: https://t.co/btVisRBcg6 Q2: https://t.co/JteO1dZsmT Q3: https://t.co/YbRmMSkvmO Q4: https://t.co/pOjt68x8ml

Oct 17, 2021 · 23 likes · 6,623 followers View post →
Titiat Scriptor
@titiatscriptor · X

7| Quellen: Q1: https://t.co/tLe0xBn9NU Q2: https://t.co/IW9DwxYJGY Q3: https://t.co/0YYcjQP7Bq Q4: https://t.co/pOjt68x8ml

Mar 26, 2022 · 11 likes · 6,623 followers View post →
con H de heterótrofo
@NutriRebel · X

Effects of light on human circadian rhythms, sleep and mood https://t.co/QWYLEirZpa

Aug 21, 2019 · 11 likes · 5 shares · 5,953 followers View post →
Manuel Spitschan PhD
@mspitschan · X

@JohnBarentine Consider this article by @christine_blume, Corrado Garbazza and myself: https://t.co/B8knV4A0Sw

Feb 5, 2020 · 6 likes · 1 share · 3,322 followers View post →

All mentions

asuka
@H4lf_L13_F8964 · X

光照疗法 doi: 10.1007/S11818-019-00215-X https://t.co/zBAXaM1C2V

Nov 18, 2025 · 1 like · 825 followers View post →
William Lagakos
@caloriesproper2 · X

Effects of light on human circadian rhythms, sleep, and mood https://t.co/9AG99umNQS https://t.co/HgZw6P0DDv

Sep 18, 2025 · 1 like · 2,696 followers View post →
OneMoreCorrespondent
@ABoleynGirl · X

@FOX21News #FallBack and #StayOnStandardTime #ProblemSolved Prolonged daylight at the end of the day is detrimental to children's #sleep, among other problems caused by #DaylightSavingTime Effects of light on human circadian rhythms, #sleep and mood - PMC https://t.co/ZsGJiwrt4z

Aug 12, 2025 · 1,063 followers View post →
OOMO
@OOMOHealth · X

Sources:

Jul 2, 2025 · 353 followers View post →
Angelo Sobrinho
@AngeloLSobrinho · X

The full paper: https://t.co/fKlPkF41Le

Jan 6, 2025 · 167 followers View post →
Circadian: Your Natural Rhythm
@Circadian_App · X

This is for all the self-proclaimed night owls ;-) “Roughly speaking, the effect of morning light is that it advances the clock, while evening and night light delays the clock.” https://t.co/oXJClfOEY9 https://t.co/IFCI2Ol5iE

Nov 27, 2024 · 3 likes · 937 followers View post →
Viktorio
@ViceroyViktorio · X

If you’re depressed, wake up early and view sunlight. Study from PubMed - Effects of light on human circadian rhythms, sleep and mood https://t.co/zJKGtVAedJ https://t.co/NyNirrgoAj

Sep 13, 2024 · 652 followers View post →
Stanford Lifestyle Medicine
@StanfordLifeMed · X

Blume et al. Effects of Light on Human Circadian Rhythms, Sleep and Mood. Somnologie (Berl). Sep 2019.

Aug 17, 2023 · 185 followers View post →
Christian Evans Welton
@chris_norcal · X

Effects of light on human circadian rhythms, sleep and mood https://t.co/ItL5dc9qlv

Mar 24, 2023 · 5,865 followers View post →
punyamaskento
@punyamaskento · X

RT @RodriChen: Good question. Mengingat circadian rhythm itu dipengaruhi oleh cahaya, pastinya berpengaruh, namun seiring semakin umumnya c…

Mar 3, 2023 · 10 shares · 158 followers View post →
☕
@StarMusketeer · X

RT @RodriChen: Good question. Mengingat circadian rhythm itu dipengaruhi oleh cahaya, pastinya berpengaruh, namun seiring semakin umumnya c…

Mar 1, 2023 · 10 shares · 707 followers View post →
Valentin Gagah Laras
@Valzzap · X

RT @RodriChen: Good question. Mengingat circadian rhythm itu dipengaruhi oleh cahaya, pastinya berpengaruh, namun seiring semakin umumnya c…

Mar 1, 2023 · 10 shares · 675 followers View post →
kristam wijaya
@Kristam80 · X

RT @RodriChen: Good question. Mengingat circadian rhythm itu dipengaruhi oleh cahaya, pastinya berpengaruh, namun seiring semakin umumnya c…

Feb 28, 2023 · 10 shares · 225 followers View post →
Elsha-chan
@ain_elsha · X

RT @RodriChen: Good question. Mengingat circadian rhythm itu dipengaruhi oleh cahaya, pastinya berpengaruh, namun seiring semakin umumnya c…

Feb 28, 2023 · 10 shares · 24 followers View post →
Risqi Muslim
@Risqimuslim · X

RT @RodriChen: Good question. Mengingat circadian rhythm itu dipengaruhi oleh cahaya, pastinya berpengaruh, namun seiring semakin umumnya c…

Feb 28, 2023 · 10 shares · 405 followers View post →
Rodri Tanoto (陳曉陽)
@RodriChen · X

Good question. Mengingat circadian rhythm itu dipengaruhi oleh cahaya, pastinya berpengaruh, namun seiring semakin umumnya cahaya artifisial, tidak yakin pengaruhnya sebesar apa. https://t.co/5jdT6EoTm4 https://t.co/tNOAtE4fOi https://t.co/lWL3DOBuqg

Feb 28, 2023 · 66 likes · 10 shares · 31,498 followers View post →
Carmenchu
@CarmenchuFM · X

Effects of light on human circadian rhythms, sleep and mood https://t.co/rj2Zz6Bje7

Sep 13, 2022 · 956 followers View post →
GREAT GRANDMOTHER
@144KDNA · X

Effects of light on human circadian rhythms, sleep and mood https://t.co/7o9Jn9o6Vw

Aug 21, 2022 · 1 like · 6,959 followers View post →
Tuya B2B
@TuyaB2B · X

Effects of light on human circadian rhythms, sleep, and mood? We share insights and provide solutions accordingly #smart #lighting https://t.co/ZbV4GPpsk5

May 26, 2022 · 299 followers View post →
ENDALA klinika zdraví
@endalaclinic · X

Effects of light on human circadian rhythms, sleep and mood - PMC https://t.co/r8leekH5H9

May 16, 2022 · 254 followers View post →
ENDALA klinika zdraví
@endalaclinic · X

Effects of light on human circadian rhythms, sleep and mood | SpringerLink https://t.co/hnBdoKeA4u

Apr 5, 2022 · 1 like · 254 followers View post →
Titiat Scriptor
@titiatscriptor · X

7| Quellen: Q1: https://t.co/tLe0xBn9NU Q2: https://t.co/IW9DwxYJGY Q3: https://t.co/0YYcjQP7Bq Q4: https://t.co/pOjt68x8ml

Mar 26, 2022 · 11 likes · 6,623 followers View post →
AriesSilk
@AriesSilk · X

RT @Grimhood: Effects of light on human circadian rhythms, sleep and mood https://t.co/x8WsXsEI0g The natural light spectrum from sunlight…

Feb 2, 2022 · 19 shares · 21 followers View post →
kike
@FUENTESMANZULLI · X

RT @Grimhood: Effects of light on human circadian rhythms, sleep and mood https://t.co/x8WsXsEI0g The natural light spectrum from sunlight…

Jan 23, 2022 · 19 shares · 248 followers View post →
DL
@luq114 · X

RT @Grimhood: Effects of light on human circadian rhythms, sleep and mood https://t.co/x8WsXsEI0g The natural light spectrum from sunlight…

Jan 23, 2022 · 19 shares · 418 followers View post →
Bikramjit Singh
@Primesuspect87 · X

RT @Grimhood: Effects of light on human circadian rhythms, sleep and mood https://t.co/x8WsXsEI0g The natural light spectrum from sunlight…

Jan 23, 2022 · 19 shares · 440 followers View post →
ENDALA klinika zdraví
@endalaclinic · X

Effects of light on human circadian rhythms, sleep and mood - PMC https://t.co/gdfFnPWfW8

Jan 23, 2022 · 254 followers View post →
Deckard Gain
@deckardgain · X

RT @Grimhood: Effects of light on human circadian rhythms, sleep and mood https://t.co/x8WsXsEI0g The natural light spectrum from sunlight…

Jan 23, 2022 · 19 shares · 4,806 followers View post →
ᴴⁱⁿᵃᵗᵃ
@nwzysrn · X

RT @Grimhood: Effects of light on human circadian rhythms, sleep and mood https://t.co/x8WsXsEI0g The natural light spectrum from sunlight…

Jan 23, 2022 · 19 shares · 1,398 followers View post →
KharonLaQua
@KharonLaQua · X

RT @Grimhood: Effects of light on human circadian rhythms, sleep and mood https://t.co/x8WsXsEI0g The natural light spectrum from sunlight…

Jan 23, 2022 · 19 shares · 24,096 followers View post →
arkahc
@arkahc12 · X

RT @Grimhood: Effects of light on human circadian rhythms, sleep and mood https://t.co/x8WsXsEI0g The natural light spectrum from sunlight…

Jan 23, 2022 · 19 shares · 123 followers View post →
نادية
@nanads__ · X

RT @Grimhood: Effects of light on human circadian rhythms, sleep and mood https://t.co/x8WsXsEI0g The natural light spectrum from sunlight…

Jan 22, 2022 · 19 shares · 519 followers View post →
yung bhristo
@YUNG_BHRISTO · X

RT @Grimhood: Effects of light on human circadian rhythms, sleep and mood https://t.co/x8WsXsEI0g The natural light spectrum from sunlight…

Jan 22, 2022 · 19 shares · 122 followers View post →
datuk kamal
@karmenlunarxisc · X

RT @Grimhood: Effects of light on human circadian rhythms, sleep and mood https://t.co/x8WsXsEI0g The natural light spectrum from sunlight…

Jan 22, 2022 · 19 shares · 40,132 followers View post →
iordananutarusu@gmail.com
@iordananutarus1 · X

RT @Grimhood: Effects of light on human circadian rhythms, sleep and mood https://t.co/x8WsXsEI0g The natural light spectrum from sunlight…

Jan 22, 2022 · 19 shares · 157 followers View post →
Pauley G
@PVG0015 · X

RT @Grimhood: Effects of light on human circadian rhythms, sleep and mood https://t.co/x8WsXsEI0g The natural light spectrum from sunlight…

Jan 22, 2022 · 19 shares · 2,471 followers View post →
MENDOZA
@0xmendozaeth · X

RT @Grimhood: Effects of light on human circadian rhythms, sleep and mood https://t.co/x8WsXsEI0g The natural light spectrum from sunlight…

Jan 22, 2022 · 19 shares · 435 followers View post →
ResilientDad | Optimal Health By Nature
@ResilientDad · X

RT @Grimhood: Effects of light on human circadian rhythms, sleep and mood https://t.co/x8WsXsEI0g The natural light spectrum from sunlight…

Jan 22, 2022 · 19 shares · 13,216 followers View post →
IAmTheFly2
@IAmTheFly2 · X

RT @Grimhood: Effects of light on human circadian rhythms, sleep and mood https://t.co/x8WsXsEI0g The natural light spectrum from sunlight…

Jan 22, 2022 · 19 shares · 985 followers View post →
Mg2+ Papi, the BowTied Mg2+
@Grimhood · X

Effects of light on human circadian rhythms, sleep and mood https://t.co/x8WsXsEI0g The natural light spectrum from sunlight is crucial to your mental/emotional state. https://t.co/Pm4PMniZPg

Jan 22, 2022 · 85 likes · 19 shares · 134,145 followers View post →
Titiat Scriptor
@titiatscriptor · X

7| Quellen: Q1: https://t.co/btVisRBcg6 Q2: https://t.co/JteO1dZsmT Q3: https://t.co/YbRmMSkvmO Q4: https://t.co/pOjt68x8ml

Oct 17, 2021 · 23 likes · 6,623 followers View post →
ENDALA klinika zdraví
@endalaclinic · X

Effects of light on human circadian rhythms, sleep and mood https://t.co/r8leekH5H9

Sep 27, 2021 · 254 followers View post →
L ☀️ Q
@numloq · X

FURTHER READING: Effects of light on human circadian rhythms, sleep and mood https://t.co/spNJgW4VZQ

Apr 6, 2021 · 2 likes · 2,928 followers View post →
Vozz l ssoV
@Terry80242 · X

https://t.co/10syaH5Gzw

May 28, 2020 · 1 like · 52 followers View post →
Li-Chia Chen
@LiChiaChen · X

Effects of light on human circadian rhythms, sleep and mood https://t.co/uDD4CTkTG9

May 10, 2020 · 339 followers View post →
Salva Bará
@salvabara · X

RT @mspitschan: @JohnBarentine Consider this article by @christine_blume, Corrado Garbazza and myself: https://t.co/B8knV4A0Sw

Feb 5, 2020 · 1 share · 1,845 followers View post →
Manuel Spitschan PhD
@mspitschan · X

@JohnBarentine Consider this article by @christine_blume, Corrado Garbazza and myself: https://t.co/B8knV4A0Sw

Feb 5, 2020 · 6 likes · 1 share · 3,322 followers View post →
AfroViking
@Seb_Fjastad · X

RT @Sunnex_Biotech: Effects of light on human circadian rhythms, sleep and mood. https://t.co/XTW9MZyZyX

Sep 8, 2019 · 5 shares · 118 followers View post →
Sally Hobbs
@sallynaturopath · X

RT @Sunnex_Biotech: Effects of light on human circadian rhythms, sleep and mood. https://t.co/XTW9MZyZyX

Sep 8, 2019 · 5 shares · 461 followers View post →
RealFoodOptometrist
@ajwodecki · X

RT @Sunnex_Biotech: Effects of light on human circadian rhythms, sleep and mood. https://t.co/XTW9MZyZyX

Sep 7, 2019 · 5 shares · 10,620 followers View post →
Dr. Carleara Weiss
@CARLEARA · X

RT @Sunnex_Biotech: Effects of light on human circadian rhythms, sleep and mood. https://t.co/XTW9MZyZyX

Sep 7, 2019 · 5 shares · 2,337 followers View post →
afrikan propaganda account
@KhalidUhuru · X

RT @Sunnex_Biotech: Effects of light on human circadian rhythms, sleep and mood. https://t.co/XTW9MZyZyX

Sep 7, 2019 · 5 shares · 1,212 followers View post →
Sunnex Biotechnologies
@Sunnex_Biotech · X

Effects of light on human circadian rhythms, sleep and mood. https://t.co/XTW9MZyZyX

Sep 7, 2019 · 3 likes · 5 shares · 77 followers View post →
RELAX Organic Beds & Healthy Sleep
@RELAXBedSystems · X

Very interesting and important for better sleep. Effects of light on human circadian rhythms, sleep and mood. #sleep #HealthyLiving https://t.co/ye9XWvLZqg

Aug 21, 2019 · 234 followers View post →
doc_Mundo
@alba_mundo · X

RT @NutriRebel: Effects of light on human circadian rhythms, sleep and mood https://t.co/QWYLEirZpa

Aug 21, 2019 · 5 shares · 150 followers View post →
Ignacio
@Nachovillar4 · X

RT @NutriRebel: Effects of light on human circadian rhythms, sleep and mood https://t.co/QWYLEirZpa

Aug 21, 2019 · 5 shares · 32 followers View post →
Sergio Zúñiga
@medicosergio · X

RT @NutriRebel: Effects of light on human circadian rhythms, sleep and mood https://t.co/QWYLEirZpa

Aug 21, 2019 · 5 shares · 37,782 followers View post →
con H de heterótrofo
@NutriRebel · X

Effects of light on human circadian rhythms, sleep and mood https://t.co/QWYLEirZpa

Aug 21, 2019 · 11 likes · 5 shares · 5,953 followers View post →