Highlights

Documentary on the effect of light pollution
Together with BioClock, Omroep HUMAN investigates in the documentary 'The shadow side of light' how artificial lighting influences our biological clock, the environment and nature.

Rust Reinheid en Regelmaat
Joke Meijer contributed to the creation of the book Rust Reinheid en Regelmaat. A book about the importance of the rhythm of light and dark.

Daylight saving time. Yes or no?
Joke Meijer advocates permanent winter time: "In winter we already have half daylight saving time."

Discovery through fMRI Research
Joke Meijer has discovered through fMRI research that the human biological clock in the brain responds to blue, green, and red light in different ways.

Opening of the First Dutch Bioclock Garden
The first Bioclock Garden in the Netherlands opened in Leiden’s school gardens, led by Prof. Joke Meijer on behalf of the BioClock Consortium. It supports nature’s rhythms and reflects Meijer’s mission to educate all generations.

A Solution for Medical Mask Shortages
Joke Meijer has found an alternative way to produce high-quality medical masks using sterilization wrapping material commonly available in hospitals. Without any financial gain, she developed a simple method that allows hospitals to locally create protective masks during shortages.
Categories

Articles
A selection of articles in newspapers and magazines.

Lectures
An overview of scientific and public lectures

Interviews
A list of interviews for radio, television and podcasts
Articles
“Mensen zijn dagdieren die met de lichtknop het hele aardse programma in de war kunnen schoppen”
Leiden University Medical Centre (in Dutch), October 2025
Follow the sun
Volkskrant Magazine (in Dutch), March 2023
‘Moeten we weer in winterslaap leren gaan?
NRC (in Dutch), February 2023
‘Is het beter om langer te slapen in de winter?
De Volkskrant (In Dutch), February 2023
“Niet alleen blauw licht houdt je wakker“
Mare Leids Universitair weekblad (In Dutch), June 2022
‘Opinie: Schaf de zomer- en wintertijd af’
Het Parool, (in Dutch), March 2022
Nederlandse onderzoekers proberen biologische klok beter in de pas te laten lopen
Trouw (in Dutch), July 2021
Avondmens? Thuiswerkend maakt het minder uit: ‘Iedereen lijkt nu flexibeler
Nu.nl (in Dutch), November 2020
Light pollution in community gardens
De Tuinliefhebber, May 2020
Who wants to go to work in the dark? Californians need Permanent Standard Time
The Sacramento Bee, February 2019
Permanente zomertijd is vier maanden jetlag
NRC (in Dutch), October 2018
Ons dagelijks ritme ontrafeld
NRC (in Dutch), October 2017
Onze biologische klok is piepklein, maar heel robuust
Trouw (in Dutch), October 2017
Measuring Health
The New York Times, May 2015
Onvoldoende basis voor latere schooltijden
NRC (in Dutch), 2015
Verstoorde ritmen maken ziek
Leidsch Dagblad (in Dutch), 2015
“Light exposure leads to overweight”
Leiden University Medical Centre (in Dutch), 2015
Kun je óveral heen rennen, en dan toch…
NRC (in Dutch), May 2014
Tegen de klok in
NRC (in Dutch), July 2002
Even in the wild, mice run on wheels
Sciencemag, May 2014
How do you know you want to become a scientist?
Today’s Science, June 2014
Lectures
The Influence of Light on Urban Well-being
Architecture Film Festival Rotterdam, October 2024
The Linnaeus Clock
Amsterdam School Garden Festival, April 2024
Amsterdam Dark Festival
Lecture about the beauty of darkness and the importance for biodiversity.
ARTIS Royal Zoo, September 2023.
The role of light in life
Public lecture at Franeker Academy, March 2023
Behavioural feedback on the central clock in diurnal mammals
A conference in honour of Prof. Paul Pévet.
Strasbourg, January 2023
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The rhythm of darkness
Outdoor science at StrandLAB Almere (in Dutch), February 2023
Night of the Night
Lecture as an Ambassador, Artis Royal Zoo Amsterdam, October 2022
The neuronal network organization of the central circadian clock
Launching lecture (No 1) BioClock Academy, September 2022
Laudatory Address at the The 20th Sapporo Symposium on Biological Rhythm
Hokkaido University, Sapporo Japan, August 2022
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Dynamic Network Organisation of the SCN
XVII European Biological Rhythms Society Congress (EBRS), Zurich, June, 2022
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Fifty years of SCN
Lecture, Society for Research on Biological Rhythms, Florida. , May 2022
Grant opening of national BioClock consortium
Planetarium Amsterdam, April 2022
Lecture Neuroscience meeting
Solden Austria, April 2022
Our ancient clocks facing modern times.
Lecture, University of Washinton, “Cobras Speaker Series”, January 2022
Frontier research at the service of the coronavirus epidemic response
Recognition of Coronavirus epidemic response efforts, November 2020
Night of the Night
Lecture as an Ambassador, Fort Vechten, Bunnik, October 2020
‘An ancient clock facing modern times’
Congress of European Sleep Research Society, October 2020
Night of the Night
Lecture as an Ambassador, Fort Vechten, Bunnik, October 2020
“De Biologische Klok in de Moderne Samenleving”
Diligentia lecture, Den Haag (in Dutch), January 2020
Cleveringa Lecture
Paris (in Dutch), November 2019
Waarom is het donker zo belangrijk voor de mens?
Lecture during Night of the Night in Artis Zoo Amsterdam (in Dutch), October 2019
Bedverhalen met Maarten Keulemans
Lecture at Night of Discoveries, Leiden (in Dutch), September 2019
How our biological clock keeps us healthy
PEP-talk for Patients & Hospital Staff, September 2019
Do Animals Have a Biological Clock?
Youth University, Natural History Museum Rotterdam, September 2018
An Old Clock in a Modern World
InterScience De Jonge Akademie in collaboration with GLOW (in Dutch), 2017
Priceless: The Value Proposition for the Humanities
Annual Winter Lecture at the Royal Holland Society of Sciences and Humanities (KHMW), 2016
Nacht van Kunst & Kennis prikkelt alle zintuigen
Nacht van kunst en kennis in Leiden (in Dutch), September 2015
Grip on Complexity
Symposium of the Royal Academy of Sciences (KNAW) Amsterdam, December 2012
“A Matter of Time”
Professorship oration of J.H. Meijer, (in Dutch), February 2008
Interviews
Joke Meijer advocates for the end of ‘daylight saving time’
NPO Radio 1 (in Dutch), March 2025
Van zomer- naar wintertijd: ‘Deze mensen hebben er het meeste last van’
De Telegraaf (in Dutch), October 2024
“Light pollution and biological clock function”
NPO Radio 1 (in Dutch), January 2024
Wat is het best: zomer of wintertijd?
NPO Radio 1 (In Dutch), March 2023
“In search of circular time”
ArtEZ Platform for Research Interventions of the Arts (APRIA) Podcast guest speaker, March 2021
Meer kennis van biologische klok kan behandelingen in gezondheidszorg optimaliseren
Max Vandaag (in Dutch), May 2019
Interview on complexity
Financieel Dagblad (in Dutch), 2014