Light and Darkness Fundamentally Affect Biology
That "night follows day" has been of outstanding certainty to us humans (Hamlet, by William Shakespeare). And indeed, at any place on Earth, it...
Do Insects Sleep?
When your dog is tired, she looks for a suitable place to lie down, closes her eyes, and nods off. There is little doubt...
Depression and Anxiety in COVID-19 Survivors
“After three weeks of treatments, I was healing from COVID, at home, had no fever, and just a little cough. But sometimes at night,...
We Are Clockworks
Fifty years ago, circadian rhythm research underwent a monumental breakthrough with the discovery of a tiny area of the brain, the suprachiasmatic nuclei (SCN),...
The Antarctic as a Chronobiologist’s Dream Lab: What we can learn from dark polar winters and bright polar summers
Polar regions are hostile environments for human beings. We are not equipped like the wildlife to survive the extreme temperatures and light conditions without...
Five Tips for Healthy Sleep During COVID-19 and After
About one-third of the adult population in Europe complains about disruptive sleep problems. That is, under normal circumstances. The situation brought about by COVID-19...
We Live in Bad Times for Good Entrainment
Entrainment is a crucial word in the dictionary of chronobiology. It means a close alignment between the internal body clock(s) and the external world...
Chronobiology — From “Biorhythmology” to Mature Science
There was a time when, at the dawn of its formation, the future field of chronobiology was perceived as pseudoscience — "biorhythmology," akin to...
Letter to My “Quarterly Club” Patients
I write this on August 1, 2020. August 1st is a date celebrated by the ancients, as Lammas, or the harvest holiday, when the...
An Ideal Marriage: Basic and Clinical Research in Chronobiology
Researchers studying single-cell blue-green algae or zebra fish, fruit flies or hamsters, often write at the bottom of their grant applications that, “Understanding basic...
