Ruxandra-Alina Dascalu

May 11, 2021

7 min read

Power of daylight on the human body & circadian rythm

World when daylight was the only source of lighting

The freedom light grants us, is something humans couldn’t dream of even a few hundred years ago. In the late 18th century, lamps were still elementary. Except for the very wealthy, or for those living in places where fuel was plentiful, light was precious and slightyly used.

Not only households were dark. In the Middle Ages there would have been no street lighting and, with only the volunteer night watch to keep guard, the authorities — so as to keep civil order…