Nathalie Cijntje, a woman who lives in Rotterdam, the Netherlands, has a hard time living in her apartment, why? She is deprived of...

We all complain during the darker period of the year about tiredness, feeling moody or depressed. Especially after two months of cold...

Around the year 2010 LEDs became the lighting industry’s main light source. The trigger for this transition was energy saving. Their...

Mr. C. Ticleanu recently published an interesting overview article about the research of the impacts of home lighting on human health. A...

We need time to indicate when we need to get up, go to work or to an appointment. This is our social time, the time you see on your watch...

Back in 2016 the community of Würlingen, Switzerland detected the need for additional classrooms. The number of children was expected to...

It’s important to have good light (sunlight or light that mimics sunlight) during the day and darkness during the night, so your brain...

Our board member Marijke Gordijn fights for good light. With today’s knowledge there are some good light products available, these are...

These blue zones are hot spots of longevity around the world. People not only live a long life here but also tent to grow old without...

Good Light Group invites people from different scientific or professional backgrounds to write a blog on Good Light. Here the first.

Changing the clock with one hour in order to make better use of natural daylight in the evening is not helpful for sleep and health....

Many people often ask us for references to scientific studies and articles that explain the beneficial effects of good light on health...

Our chairman Jan Denneman was asked to write an article about the nonvisual effects of light for the magazine LED professional Review...

Good light contributes to a good performance. Especially in sports, athletes benefit from the positive influence that light has on mental...

Board member Marijke Gordijn with more than 30 years of experience in chronobiology and sleep was interviewed for an article in the Dutch...

The Algmeen Dagblad asked Jan and Marijke to test different light therapy lamps. Nowadays a lot of people suffer the winter blues. A...

The holidays are over, it's cold and dark, we prefer to sit inside. Nevertheless, you need a daily portion of good light.

The 2nd International Workshop on Circadian and Neurophysiological Photometry in 2019 brought together 18 experts in lighting,...

Dutch researchers are joining forces to conduct research together with a series of societal partners to keep the biological clock healthy in

Recently, I wrote a blog post for the Daylight Academy about the importance of good light in buildings for well-being and health of the...