Free information on chronobiology,
the biological clock, circadian rhythm,
sleep, health and light therapy

Blog overview

Social Jet Lag

A social jet lag has negative concequences for mental and fysical health

Jet lag often refers to the negative consequences of traveling through multiple time zones, for example for a holiday or...

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chrono coaching

What is Chrono Coaching? And what uses does it have?

The term “Chrono Caching” is more exciting than it actually is. It actually is the counterpart of Light Therapy whereas...

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We need blue light in our lives

There is quite a bit of controversy about blue light. In the past, we have paid attention to this in...

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importance of sleep

The relation between sleep and COVID-19

The COVID-19 pandemic has a serious impact on our sleep patterns. This is alarming as a healthy sleep- wake rhythms...

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sleep and mental health

Improve your sleep quality for better mental health

The body of evidence proving that sleep affects anxiety continues to expand with researchers demonstrating a link between not getting...

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Caffeine as substitute for sleep

Using caffeine as a substitute for proper sleep can contribute to sleep disorders

Poor sleep and sleep deprivation are serious health hazards on a global level. We have talked about this many times...

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Light therapy protects the brain against toxic buildup that leads to Alzheimer’s

It may come as no surprise that Alzheimer’s and other dementia related diseases are diseases that people are most afraid...

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lack of sleep

Lack of good sleep affects memory, focus and concentration

There are a number of things that are important, so you should know about the importance of a good night’s...

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The timing of light exposure could affect your health

In the age of working from home due to COVID-19, many of us may be spending significantly more time inside...

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Light therapy helps with depression during pregnancy

A study by Erasmus MC shows that no less than 12 percent of Dutch women experience depression during pregnancy. Light...

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Slaaptekort kan leiden tot angstaanvallen

Verstoring van angstresponsregulatie kan een belangrijke rol spelen bij psychische stoornissen als angststoornis en posttraumatische stressstoornis (PTSD). Dit laatste onderzoek...

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A lack of sleep can contribute to anxiety

Disruption of fear response regulation may play an important role in mental health disorders as anxiety and post traumatic stress...

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