Welcome to CET’s fact-filled website!

Here are the three main categories of the CET team’s work. Feel free to explore our topics.

Circadian rhythms

My sleepy brain loves the sound of permanent daylight savings. But do scientists agree?

The US Senate voted to get rid of twice-yearly time changes this week. But sleep experts warn they’re taking the wrong approach to a real problem

How We Keep Our Circadian Rhythms from Drifting

Imagine sitting out in space watching the earth gently rotate eastward on its axis, providing daily sunsets and dawns to all us 7.6 billion earthlings.

I am considering using a light box to adjust my circadian rhythm, which is now severely delayed...

I am considering using a light box to adjust my circadian rhythm, which is now severely delayed.

Circadian Misalignment: A Biological Basis for Mood Vulnerability in Shift Work

Depression has significant economic impact: According to the World Health Organization, the estimated cost to the global economy is US$1 trillion per year in lost productivity.

What Are Circadian Rhythms and How Can They Go Wrong?

Many textbooks already explain the properties of daily (circadian) rhythms, so let us here just focus on the concepts…

Do you want more Body Clock information?

Check out our resources on this topic divided in three more categories related to Chronotype, Melatonin and Circadian Architecture.

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