Series
Light and Human Health
For much of human history, sunlight was considered an important element of human health. This series explores the often forgotten story of light in medicine and human biology — from heliotherapy and sun sanatoria to modern research on vitamin D, circadian rhythms and the broader biological effects of light.
Sanatoria of the 19th and 20th centuries were places where, for the first time in modern history, light began to
Hospitals are often associated with technology and sterility, but what if the most powerful medicine is still nature itself? More
The Industrial Revolution was the first moment in history to cut people off from natural light. Life shifted into cities,
For millennia, the Sun has shaped the rhythm of life and health. In traditional medicine, it functioned as a natural
Long before science emerged, the sun taught people how to live in harmony with nature and became one of the
For millennia, sunlight supported healing and health. Today, science confirms what earlier generations knew: without light, neither our bodies nor