Life and Light in a Nursing Home
Light therapy was first developed to treat winter depression. Its rapid success led to using light in other areas of psychiatry, in particular for...
Life Across Latitudes
The first humans appeared in Africa in a region with latitude around 10 degrees, where there are approximately 12 hours of natural light and...
Teen sleep: Too late, too little, or both?
Sleep in adolescents has been a significant concern in many countries around the globe. Scientists and physicians have determined that the optimal sleep need...
Does Sleep Reflect Daytime Experience in Specific Parts of the Brain?
The dolphin sleeps with one half of its brain at a time, while the other half stays awake. This was shown by the Russian...
The Ecological Impacts of Light at Night
The manifold biological uses of light have served organisms extremely well for millenia. But now, ever more rapidly, the great certainty that "night follows...
Melatonin and Its Uses
Google “melatonin” and the search engine will provide nearly 2 million references at the time of writing (August 2020). These vary from factual science...
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),...
