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Daylight detector & biological clock

Updated: 10 hours ago

Our body has a daylight detector: light sensitive cells in our eyes, called “spheres”. These connect to the part of the brain called the biological clock that regulates our body’s daily rhythms. The discoverers of how the biological clock works were awarded the Nobel Prize.



The daylight detector uses light to adjust our biological clock with the time of day. In the morning the intense daylight activates us. In the evening, when the sun goes down, it prepares our body for a good night’s sleep. When our biological clock is properly aligned with time we are fit during the day, our mood is upbeat and we rest well during sleep.


Fact: the right light at the right time.

The daylight detector needs bright light during daytime and dim light in the evening to adjust our biological clock.


If you want to bring good light in your life, watch also the other steps to a healthier and happier life here: Try | Home | Good Light Group | Foundation


Light supports us in everything we do. Good light means the right light at the right time. It has a great positive impact on our experience of energy, sleep, happiness and health.

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