The results of our study on the effects of near-infrared light (NIR) on health and well-being in people suffering from sleep loss is published today. In a double-blind, randomized, placebo-controlled study, the effects of three NIR light (850 nm) doses (1, 4, or 6.5 J·cm−2) were examined against the placebo. Exposure was presented five days…
Kick off meeting Healthy Living as a service in Martiniplaza. Our goal in this project is to contribute with knowledge on 24-hour rhythms and sleep. Michelle Luxwolda and Rieks Hoekman organised a presentation of Chrono@Work in a booth. The audience could indicate their sleep pattern to create a chronotype distribution in a creative way!
Chrono@Work received the good news that funding was granted for a project in the topic PCH (personalized & connected health) Ecosystem from the University Medical Center Groningen. This is a European funded project under the umbrella of SNN. In the project, Chrono@Work, supported by the University of Groningen, will develop a mobile application to use…
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…
Can we bring in a bit of sunshine? After 2 successful rounds of the Light Study last summer and winter, we have decided to extend the study into near-infrared light one more time to the coming winter period. This is the first-ever long-term study into the effects of pulsed near-infrared (NIR) light on human well-being…
Marijke Gordijn is invited for several public events (in Dutch) on the topic of Daylight saving time. The first one will be an interview organised by Studium Generale Utrecht in collaboration with Tivoli/Vredenburg. On October 28th, at 8:15 pm on the stage of Tivoli-Vredenburg in Utrecht, Marijke will talk about the role of the biological…
Normally we promote to sleep at night and be awake during the day. However, Marijke Gordijn from Chrono@Work accepted the invitation to be one of the two guests in the night program De Slapelozen on Dutch radio on early Thursday morning August 12th 2021, between 2 and 4 am. The reason why is that during…
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…
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…
Chrono@Work has received a VIA grant from the European Regional Development Fund (EFRO) for support with the development of a new consumer service, namely individual coaching and advice on sleep-wake rhythm disturbances. The grant is for hiring expert Maureen van Veelen from Next Phase Management and Advice, who will help C@W to set up this…
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,…
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…
Chrono@Work will be present at several symposia, classes and congresses in the upcoming period. Please have a look and subscribe if you are interested in the topic. 16th April 20:00h in Leeuwarden: Studium Generale Het Einde van de Zomertijd en Dan? 18th April whole day in Zeist: Medilex symposium on ‘Slaapproblemen en -stoornissen bij mensen met…
On May 17th, Pauline Bollen and Marijke Gordijn from Chrono@Work organized an interactive workshop for a group of 15 social workers of academic institutes in the Netherlands. The assignment was clear: inform us on possible sleep problems we may encounter in our office and how to proceed if we recognize some. The 3h-workshop consisted of…
Chrono@Work B.V. Groningen is the first company this year to receive a grant of € 25,000 of SNN. The innovation grant for the Groningen company is intended for research into the feasibility of a sensor system that teaches poor sleepers to sleep according to their biological clock. Read more on the site of SNN. With…
The Dutch media are highly interested in the new teaching package Charge Your Brainzzz. Please read the item “50% of the adolescents do not sleep enough…but in this way you will get them in bed” (in Dutch) that RTL published online on September 27th.
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…
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…
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…
Bruinenberg, V.M., Gordijn, M.C.M., MacDonald, A., Van Spronsen, F.J., Van der Zee, E. Sleep disturbances in Phenylketonuria: an explorative study in men and mice. Frontiers in Neurology, section Sleep and Chronobiology. vol. 8:167 (2017).
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5405067/
Gordijn M.C.M. Slapen als onderdeel van een gezonde leefstijl. In: “Gestoorde slaap: een onschuldig probleem?” Lancel M., Koenraadt F. en ‘t Lam K. (eds). Wolf Legal Publishers. pp 13-28. (2016).
Chrono@Work’s employee Marina Giménez is the first author of a paper describing a study on the effects of a new dynamic room lighting system on sleep of patients admitted to a cardiology ward. Irregular 24 h light/dark cycles with night-time light exposure and a low amplitude are disruptive for sleep, mood and circadian rhythms. Nevertheless,…
LIght therapy to shift the biological clock has been shown to be effective, but in most cases studies are carried out in well controlled laboratory studies and with long duration light pulses. In practice, light therapy should consist of an easy to apply lighting regime to which people at home will adhere and with clear…
Chrono@Work wrote an informative article in the journal of “Longkruid” of the Dutch Society for Pulmonary Function Analysts. Breathing and sleep are two essential elements of our daily life that, if everything is working correctly, we barely notice. But if something goes wrong, it has a great impact on our daily lives, our work and…
Light pulses of 30 min. in the morning on three consecutive days, in a home setting, in combination with dim light during the evenings, can be part of an efficient phase advancing chronotherapy protocol to shift the biological clock. It is well known from controlled laboratory experiments, that light in the morninge induces phase shifts of the biological…
Under the umbrella of the Dutch Association of Sleep-Wake Research (NSWO) and the Sleep Medicine Association Netherlands (SVNL) the first Dutch Sleep Congress, SLEEP 2016.will be organized on the 3-4 November, 2016 in the Heerlickheijd, Ermelo. The conference is a unique interdisciplinary collaboration between different departments working in the field of Sleep, e.g. pulmonologists, neurologists,…
Daylight saving time will be set coming Saturday to Sunday. The clock will advance and this is something we can feel well: our biological clock gets upset. Marijke Gordijn, chronobiologist at the University of Groningen explains why: ‘Our brains contain a biological clock. That signals to our body what time it is. Just like old-fashioned…
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…
As the 24-hour economy continues to leave its mark on societal life, the effects of the disruption of the natural biological rhythm become more apparent. Aside from the effects this has on sleep we will also discuss the health effects in the long term. As well as potential measures to reduce the negative effects of…
ASSEN – Daylight saving time and standard time, almost everyone is affected by it. Some more than others. Some people need four weeks to get back to their ordinary rhythms. Along with the University of Groningen, Marijke Gordijn investigates sleep disorders: “Especially the switch to daylight saving time is tough for people who are sensitive…
