Start consumer service Sleep in Sync

The time has come! By popular request, Chrono@Work has set up a new service for consumers, called Sleep in Sync. Sleep in Sync is available to consumers who want to sleep better and work on this topic. We all know that sleep is important, but one in five Dutch people do not think they sleep…

Research output

Chrono@Work is a science driven company. We perform a lot of research and we collaborate with many clinical and scientific professionals to support analyses and interpret results. In this way we support science and use our expertise on chronobiology and sleep in the fields of psychiatry, metabolism, sleep, and other disciplines. Very regularly we publish…

Study on the effects of near-infrared is up and running

In November, we started with recruiting new participants for the study on the effects of near-infrared light. Purpose was to include 20 more subjects in winter. The task was to include them all within 3 weeks to be ready before Christmas. And yes! We are happy to announce that we managed to find 20 enthusiastic…

We are hiring!

Do you like translating scientific knowledge into practical solutions for society? Do you have knowledge in the fields of chronobiology and sleep? Do you want to gain experience in a science-driven young and unique company? Then we are looking for you as our new junior science advisor. Who are we looking for? A young scientist…

Article in LED Magazine

“Artificial light in most offices and homes undermines performance, well-being and health; it’s time for change and that starts with a new awareness,” says Marijke Gordijn in an article in the LED Magazine of June 2021. Marijke Gordijn has been arguing for the right light at the right time for years. Read the whole article…

Longer and later sleep due to lock down

On January 8th, Marijke Gordijn from Chrono@Work and Roelof Hut from the University of Groningen were interviewed by EditieNL about the effects of the COVID-19 related restrictions on sleep. Colleagues recently published that on average people sleep longer and later during the lockdown. However, shortage of sleep and sleeping problems have serious health effects. EditieNL…

Interview NPO Radio 1 on December 26th

In the early morning of December 26th, Marijke Gordijn from Chrono@Work gave an interview on NPO Radio 1 about the role of light for well being and health. This item is especially interesting in the dark winter days around Christmas in our region. The focus of the interview was on the new study we do…

Tips to improve the regularity of daily routines, even when nothing about your life feels regular!

The COVID-19 pandemic poses a serious health threat to the world population. In response, governments are implementing a variety of new policies including self-quarantine, self-isolation and social distancing. While medically necessary to limit spread, these new social policies can disrupt many of the stabilizing factors in our lives which support mental health. In close collaboration,…

Working from home? Take care you see enough daylight!

The policies to limit spreading of COVID-19 is ‘stay home’ and ‘work from home’. The consequence is that most people see very little daylight. While it is very important to stay home as much as possible and keep ‘social distance’ all the time, in the Netherlands it is not forbidden to go outside. The Dutch…

Campaign against Drowsy Driving

On 3 February 2020, the Flemish Traffic Sciences Foundation in Belgium (Vlaamse Stichting Verkeerskunde or VSV) is launching a campaign to raise awareness of the dangers of ‘drowsy driving’. Sleepiness is one of the main causes of fatal traffic accidents. During the campaign, which runs until March 1, 2020, road users can do an online…

Plea for Central European Time in the Netherlands

Last weekend Daylight saving time 2018 ended and Europe went back to Central European Time. In a short movie commissioned by the University of Groningen, Marijke Gordijn explained once more why for us, in the Netherlands, the current time we have in winter is the most optimal choice. In fact, The Netherlands should even be…

16 tips to wake up easier in The Guardian

Linda Geddes, journalist in the UK, published an article in the Guardian titled “No more snooze button: a complete guide to waking up feeling fantastic“. “Now the clocks have gone back and the days are getting shorter, it can be hard to get out of bed. But, from dawn simulators to a regular wakeup time,…

Winter time !! Not summer time !!

An overwhelming majority of the European population voted against the Daylight Saving Time (DST) clock shifts. Of the 4.6 million respondents to the online survey of the European Commission, no less than 80 percent indicated they wanted to get rid of the shift back and forth in time twice a year. It is now up…

Human solutions for control rooms in Muscat

Invited by Honeywell and Medilux, Chrono@Work gave a lecture in Muscat (Oman) on ‘human solutions for control rooms’. In between very technical lectures and for a very special, interested audience, we talked about putting the human in the center of attention. What can we do to optimize the 24h environment for people working 24/7 in…

In memory | Professor emeritus Serge Daan (1940-2018)

With deep sadness we received the news that Professor emeritus Serge Daan passed away on Friday, February 9th, 2018. Serge Daan is the founder of Chronobiology at the University of Groningen and made human chronobiology possible by building time isolation units back in the nineties at the Biology department. He was a great teacher and…

Health risks of night shift work

As a member of the Committee Nightwork, Marijke Gordijn contributed to a new publication of the Health Council of the Netherlands: Health Risks of night shift work. In the Netherlands about 1.3 million people sometimes or regularly work at night. Night shift work disrupts the day-night rhythm of the body, which may lead to adverse…

Charge your Brainzzz is live!

After a year of hard work we are there! The teaching materials for the package Charge Your Brainzzz are ready. Charge your Brains teaches highschool students about sleep. On 27 September, Chrono@Work and the Dutch Brain Foundation will launch this special educational package. Charge Your Brainzzz is a modern package with activating learning tools including…

Brain Foundation public day 2017: Brains and stimuli

On Thursday October 12th, the 25th Public Day of the Brain Foundation will take place in De Doelen in Rotterdam, with the theme Brain and stimuli. Language is Dutch. During multiple lectures, prominent brain researchers report on their brain and stimuli research. During the breaks, visitors can take a look at the HersenPlaza (formerly Information…

Launching teaching material Charge Your Brainzzz

Wednesday September 27th, Chrono@Work and the Brain Foundation will launch the new teaching material Charge Your Brainzzz in the Corpus Congress Centre in Leiden. Charge Your Brainzzz consists of a package of three lessons about sleep regulation and sleep disorders, with activating learning tools, animations (to be used during class) and a serious game developed…

Video recordings for e-learning course

Today we started with recording the first video’s for the e-learning course Animal & Human experimentation. Chrono@Work develops this course together with the University of Groningen. In the next academic year, it will be possible to complete this mastercourse that is obligatory for masterstudents working with animals during their research project completely on demand. With…

SAVE THE DATE SLAAP 2017

In continuation of SLAAP2016, the second Dutch Sleep Congress will be organized again this year under the umbrella of the Dutch Society for Sleep-Wake research (NSWO) and the Sleep Medicine Association Netherlands (SVNL) in the Heerlickheijd in Ermelo. SLAAP 2017 is a unique collaboration between the various disciplines who work in the field of Sleep, such…

Chrono@Work moved to a new office!

Chrono@Work has moved to a new office. As from March 1st we are housed in the beautiful old milkfactory De Ommelanden, still very close to our colleagues of the University Groningen. Our new address is Friesestraatweg 213, 9743 AD Groningen. Telephone and email have not changed.

Are blue light filters nonsense?

In their issue No. 19 of 23 August – 6 september, Computer Idee, a magazine about computers and electronics for consumers, pays detailed attention to the pros and cons of blue light filters for computers, tablets and smartphones. The conclusion is that we are exposed to more blue light through the use of electronic screens…

NRC checks…are the Dutch indeed the champions of sleep?

NRC next fact check, examines whether the NRC report in the Algemeen Dagblad of 9 May over Duch being campions at sleeping long is correct. The conclusion was drawn on the basis of an article in Science Advances which made use of data from the worldwide used sleepapp. NRC Next consulted among others, Chrono@Work on this…

‘We better repeal daylight saving time’

During the night of Saturday to Sunday daylight saving time will start: the clock will move forward one hour. The discussion to get rid of daylight saving time has been going on for many years. NU.nl asked the experts about their opinion. “I think we can better repeal daylight saving time”, states researcher of human…

‘Get rid of your blues’

Trouble getting out of bed, a constant yearning for chocolate, craving Netflix more than sex… The shortest day might be over, but especially in January and February we massively encounter the winter blues. The University of Groningen figured that in roughly 500.000 Dutch people the winter blues takes on such a violent form that they…

‘The role of sleep and time of day on athletic performance’

December 11th 2015 the sympium Licht -Donker -Slaap (Light- Dark- Sleep) took place at the Beurs van Berlage in Amsterdam. Marijke Gordijn was there to give a lecture regarding ‘when every second counts, the role of sleep and time of day on athletic performance”. Why is sleep an important part of your training-schedule? Does it…

Shift work and health risks: possibilities for prevention

Roughly 16% of the Dutch labor force works during the nightly hours on a regular basis. Signals arise from scientific literature that this might not always be healthy. Research does not yet have a decisive answer to which preventive measures protect employees best. A forward rotating schedule or a short bout of sleep during night…

‘Is it not better to abolish daylight saving time?’

Marijke Gordijn is researcher at the University of Groningen and entrepreneur. Using her company Chrono@Work she puts knowledge from the field of chronobiology on the market. She tells why daylight saving time should be abolished. Chronobiology got its name in the ‘60s, In Germany research was performed inside a bunker, an area secluded from information…

‘The optimal working schedule is different for everyone.’

‘The optimal working schedule is different for everyone.’ Increasingly, Dutch businesses are looking for ways to increase health of their shift workers, according to chronobiologist Marijke Gordijn of the Univerity of Groningen. Her company Chrono@Work increasingly gets asked about what to do concerning workplace lighting, food patterns and the right way to schedule personnel. Gordijn…